How long is influenza A contagious?

Best Answer

A person can expect to be able to spread the flu one day before their symptoms begin and then for up to seven days after becoming ill.

The influenza virus, or flu, is a highly contagious respiratory virus that can infect people of all age groups.

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Is canine influenza contagious?

Dogs infected with CIV are most contagious during the two- to four- day virus incubation period, when they shed the virus in their nasal secretions but do not show signs of illness. The virus is highly contagious and almost all dogs exposed to CIV will become infected.

Is influenza A contagious to dogs?

Transmission and prevention of canine influenza. Dogs infected with CIV are most contagious during the two- to four- day virus incubation period, when they shed the virus in their nasal secretions but do not show signs of illness. The virus is highly contagious and almost all dogs exposed to CIV will become infected.

How long will influenza A last?

As harsh as the flu can be, the good news is that most people feel much better within one to two weeks. Most healthy adults become contagious the day before symptoms develop (which makes it trickier to prevent from spreading). They remain infectious for up to five to seven days after symptoms appear.

How long does influenza A last?

Symptoms usually appear from one to four days after exposure to the virus, and they last five to seven days. For people who've had a flu shot, the symptoms may last a shorter amount of time, or be less severe. For other people, the symptoms may last longer.

How long is a stomach bug contagious?

Symptoms of rotavirus — the leading cause of viral gastroenteritis in infants and young children — usually appear one to three days after exposure. But you're contagious even before you develop symptoms, and up to two weeks after you've recovered.

How long is a cold sore contagious?

HSV-1 is very contagious. You can spread the virus even when you don't have any symptoms of a cold sore, though you're usually most contagious when you have them. Cold sores are contagious until they go away completely, which usually takes about two weeks.

How long is conjunctivitis contagious?

Bacterial pink eye is highly contagious and is typically treated with antibiotic eye drops. It can spread to others as soon as symptoms appear, and it remains contagious for as long as symptoms remain, or for about 24 hours after starting a course of antibiotics.

How long is Bordetella contagious?

Veterinarians recommend that any dog that is suspected of having kennel cough be isolated from other dogs for 14 days, however they are usually only contagious for the first 7-10 days of illness.

How long is vomit contagious?

How long am I contagious if I have the stomach flu? You can be contagious from a few days up to two weeks or more, depending on which virus is causing your stomach flu (gastroenteritis). A number of viruses can cause gastroenteritis, including noroviruses and rotaviruses.

How long is leishmaniasis contagious?

Communicability period. Not directly transmitted from reservoir to person, but infectious to sandflies as long as parasites remain in lesions in untreated cases, usually a few months to 2 years. Transmission is seasonal through adult sandflies.

How long is parvo puppy contagious?

However, the dog can be contagious for up to 6 weeks after initial symptoms have shown. Canine Parvovirus, or CPV, can live for months on surfaces and up to a year in ground soil.

How long until ringworm is not contagious?

In general, ringworm is not contagious about 24-48 hours after topical medication treatment. However, treatment protocols usually require about one to two weeks of treatment.

How long is slap cheek contagious for?

Parvovirus is most contagious during the incubation period, around two weeks before the onset of the rash or other symptoms. Your child isn't usually contagious once the rash has appeared. No vaccine is currently available for slapped cheek disease.

How long is the common cold contagious?

The contagious period for the flu begins about 1 day before symptoms start and can last as long as 5-7 days from when you first felt sick. You're generally contagious with a cold 1-2 days before your symptoms start, and you could be contagious as long as your symptoms are present—in rare cases, up to 2 weeks.

How long is canine papilloma contagious?

The incubation period is 1 to 2 months, so if your dog has oral papillomas he or she got the infection quite some time ago. Oral papillomas occur relatively commonly in dogs, and usually affect dogs in puppyhood and as young adults. This virus is NOT contagious to people or to any other animals except dogs.

How long is C diff infection contagious?

How will I know if I am no longer contagious for C. diff? People infected with C. diff who become ill usually are treated with special antibiotics (metronidazole (Flagyl), vancomycin (Vancocin), rifaximin (Xifaxan) and/or fidaxomicin) for about 10 to 14 days.

How long is canine flu contagious?

Dogs infected with CIV are most contagious during the two- to four- day virus incubation period, when they shed the virus in their nasal secretions but do not show signs of illness. The virus is highly contagious and almost all dogs exposed to CIV will become infected.

How long is kennel cough contagious for?

Veterinarians recommend that any dog that is suspected of having kennel cough be isolated from other dogs for 14 days, however they are usually only contagious for the first 7-10 days of illness.

How long is dog flu contagious?

Dogs infected with CIV are most contagious during the two- to four- day virus incubation period, when they shed the virus in their nasal secretions but do not show signs of illness. The virus is highly contagious and almost all dogs exposed to CIV will become infected.

How long is kennel cough contagious?

Veterinarians recommend that any dog that is suspected of having kennel cough be isolated from other dogs for 14 days, however they are usually only contagious for the first 7-10 days of illness.

How long is a dog with distemper contagious?

One to six weeks for the majority of cases with most showing signs within one to four weeks. When do dogs infected with distemper become contagious? Up to five days prior to the onset of clinical signs. This is complicated though by the number of cases that are shedding without recognizable signs of illness.

How long is a person with scabies contagious?

The scabies infestation usually lasts until treated. People are usually no longer contagious within 24 hours of treatment. Even after successful treatment, the dead mites, dead eggs, and fecal material will remain in the skin for 2 to 4 weeks (until the skin grows out). Thus, intense itching is expected to continue.

How long is a puppy contagious after parvo?

However, the dog can be contagious for up to 6 weeks after initial symptoms have shown. Canine Parvovirus, or CPV, can live for months on surfaces and up to a year in ground soil.

How long is a puppy with Parvo contagious?

However, the dog can be contagious for up to 6 weeks after initial symptoms have shown. Canine Parvovirus, or CPV, can live for months on surfaces and up to a year in ground soil.

How long is a dog contagious with ringworm?

Infected pets remain contagious for about three weeks if aggressive treatment is used. The ringworm infection will last longer and remain contagious for an extended period of time if only minimal measures are taken or if you are not faithful with the prescribed approach.

How long is a person contagious with E coli?

Not all strains of E. coliare contagious. However, strains that cause gastrointestinal symptoms and infection are easily spread. The bacteria can also survive on contaminated surfaces and objects for a short period of time, including cooking utensils.

How long is a dog contagious with dog flu?

Dogs infected with CIV are most contagious during the two- to four- day virus incubation period, when they shed the virus in their nasal secretions but do not show signs of illness. The virus is highly contagious and almost all dogs exposed to CIV will become infected.

How long after a dog has parvo Is it contagious?

However, the dog can be contagious for up to 6 weeks after initial symptoms have shown. Canine Parvovirus, or CPV, can live for months on surfaces and up to a year in ground soil.

How long is a person contagious when they have mono?

This is called the incubation period. Once your symptoms do appear, they may last for two to four weeks. You can pass the virus to other people through your saliva for up to three months after your symptoms subside. Some studies have reported that you may still be contagious for up to 18 months.

Is influenza A Dangerous?

It's quite different from the common cold, which is less severe. Colds can be caused by any one of around 200 viruses. Influenza is also caused by a virus but it's not normally dangerous if you're healthy. Sometimes, however, different strains of influenza can cause serious illness in some people.

How long is the stomach flu contagious?

Symptoms of rotavirus — the leading cause of viral gastroenteritis in infants and young children — usually appear one to three days after exposure. But you're contagious even before you develop symptoms, and up to two weeks after you've recovered.

How long is E coli contagious?

Not all strains of E. coliare contagious. However, strains that cause gastrointestinal symptoms and infection are easily spread. The bacteria can also survive on contaminated surfaces and objects for a short period of time, including cooking utensils.

How long is a dog with kennel cough contagious?

Veterinarians recommend that any dog that is suspected of having kennel cough be isolated from other dogs for 14 days, however they are usually only contagious for the first 7-10 days of illness.

How long is a dog with ringworm contagious?

Infected pets remain contagious for about three weeks if aggressive treatment is used. The ringworm infection will last longer and remain contagious for an extended period of time if only minimal measures are taken or if you are not faithful with the prescribed approach.

How long is a dog with pneumonia contagious?

How long is pneumonia contagious? In general, many bacterial pneumonias are much less contagious after antibiotics have been administered for about 24-48 hours. However, this time period may vary for some organisms, like those that cause tuberculosis.

How long is a dog with parvo contagious?

However, the dog can be contagious for up to 6 weeks after initial symptoms have shown. Canine Parvovirus, or CPV, can live for months on surfaces and up to a year in ground soil.

How long is a person contagious with C diff?

How will I know if I am no longer contagious for C. diff? People infected with C. diff who become ill usually are treated with special antibiotics (metronidazole (Flagyl), vancomycin (Vancocin), rifaximin (Xifaxan) and/or fidaxomicin) for about 10 to 14 days.

How long is a dog contagious with mange?

The incubation period for canine scabies is 8-10 days after exposure, but dogs who are infected may not show symptoms for 3-4 weeks. This is a big reason why mange is so contagious – dog owners may not realize their dog is infected, so they continue going about their normal routine while the mites spread.

Is influenza A live vaccine?

Live attenuated influenza vaccine (LAIV) is a type of influenza vaccine in the form of a nasal spray that is recommended for the prevention of influenza.

How long is a dog contagious with kennel cough?

Veterinarians recommend that any dog that is suspected of having kennel cough be isolated from other dogs for 14 days, however they are usually only contagious for the first 7-10 days of illness.

How long after Parvo is a dog contagious?

However, the dog can be contagious for up to 6 weeks after initial symptoms have shown. Canine Parvovirus, or CPV, can live for months on surfaces and up to a year in ground soil.

How long is a dog with kennel cough contagious for?

Veterinarians recommend that any dog that is suspected of having kennel cough be isolated from other dogs for 14 days, however they are usually only contagious for the first 7-10 days of illness.

How long is a person contagious with MRSA?

Consequently, a person colonized with MRSA (one who has the organism normally present in or on the body) may be contagious for an indefinite period of time. In addition, MRSA organisms can remain viable on some surfaces for about two to six months if they are not washed or sterilized.

Is influenza a notifiable disease?

Influenza viral infection is a notifiable infectious disease in Western Australia. Notifications should be made using the communicable disease notification form for metropolitan residents (PDF 214KB) or regional residents (PDF 213KB).

How long are colds contagious?

The contagious period for the flu begins about 1 day before symptoms start and can last as long as 5-7 days from when you first felt sick. You're generally contagious with a cold 1-2 days before your symptoms start, and you could be contagious as long as your symptoms are present—in rare cases, up to 2 weeks.

How long before kennel cough is not contagious?

Veterinarians recommend that any dog that is suspected of having kennel cough be isolated from other dogs for 14 days, however they are usually only contagious for the first 7-10 days of illness.

How long is an upper respiratory infection contagious after antibiotics?

How long will I be infectious after starting antibiotics? When a person is "infectious", it means they're able to pass their infection on to others. You're usually no longer infectious 24 hours after starting a course of antibiotics, although this time period can sometimes vary.

How long is my dog contagious with kennel cough?

Veterinarians recommend that any dog that is suspected of having kennel cough be isolated from other dogs for 14 days, however they are usually only contagious for the first 7-10 days of illness.

How long is my dog contagious with upper respiratory infection?

URI is contagious to other dogs and generally lasts 7-14 days. Dogs may require an antibiotic to help treat any secondary, bacterial infection. Ninety percent of canine upper respiratory infections are viral, caused most commonly by bordatella.

How long are you contagious with norovirus?

People infected with a norovirus are contagious from the moment they begin feeling ill to at least three days after recovery. Some people may be contagious for as long as two weeks after recovery. Good hygiene practices, including frequent hand washing, are very important during this period.

How long are you contagious with a fever?

The contagious period for the flu begins about 1 day before symptoms start and can last as long as 5-7 days from when you first felt sick. You're generally contagious with a cold 1-2 days before your symptoms start, and you could be contagious as long as your symptoms are present—in rare cases, up to 2 weeks.

How long are dogs contagious after parvo?

However, the dog can be contagious for up to 6 weeks after initial symptoms have shown. Canine Parvovirus, or CPV, can live for months on surfaces and up to a year in ground soil.

Is canine influenza serious?

The severity of illness associated with canine flu in dogs can range from no signs to severe illness resulting in pneumonia and sometimes death. Most dogs recover within 2 to 3 weeks. However, some dogs may develop secondary bacterial infections which may lead to more severe illness and pneumonia.

Is canine influenza fatal?

Virtually all dogs exposed to the virus become infected, and nearly 80% show clinical signs of disease, though most exhibit the mild form described above. A: Fatal cases of pneumonia resulting from infection with canine influenza virus have been reported in dogs, but the fatality rate is low (less than 10%).

How much is the canine influenza vaccine?

The vaccine is administered twice for a total cost of $20-$30. Canine Influenza: This vaccine protects against the canine flu virus.

How long are you contagious with shingles?

The virus behind shingles can be spread to other people. Shingles itself is not contagious. When a person is infected with shingles, they will first experience a tingling of the skin, burning and numbness, usually on one side of the body. After 2 to 3 days, clusters of small, pus-filled blisters then appear.

How long are you contagious with Giardia?

How Long Does Giardiasis Last? In most cases, treatment with 5 to 7 days of antiparasitic medicine will help kids recover within a week's time. Medicine also shortens the time that they're contagious. If giardiasis isn't treated, symptoms can last up to 6 weeks or longer.

How long are you contagious when you have a cold?

The contagious period for the flu begins about 1 day before symptoms start and can last as long as 5-7 days from when you first felt sick. You're generally contagious with a cold 1-2 days before your symptoms start, and you could be contagious as long as your symptoms are present—in rare cases, up to 2 weeks.

How long are dog warts contagious?

Because they are viral, they are transmissible from dog to dog. The virus is present in the papillomas, and the infection is spread by direct contact with the papilloma in an infected dog's mouth. The incubation period is 1 to 2 months, so if your dog has oral papillomas he or she got the infection quite some time ago.

How long are you contagious stomach flu?

Rotavirus. Symptoms of rotavirus — the leading cause of viral gastroenteritis in infants and young children — usually appear one to three days after exposure. But you're contagious even before you develop symptoms, and up to two weeks after you've recovered.

How long does a dog with distemper stay contagious?

One to six weeks for the majority of cases with most showing signs within one to four weeks. When do dogs infected with distemper become contagious? Up to five days prior to the onset of clinical signs. This is complicated though by the number of cases that are shedding without recognizable signs of illness.

What is canine influenza?

Canine influenza (dog flu) is influenza occurring in canine animals. Canine influenza is caused by varieties of influenzavirus A, such as equine influenza virus H3N8, which in 2004 was discovered to cause disease in dogs. It is a disease with a high morbidity (incidence of symptoms) but a low incidence of death.

Is influenza A virus or bacteria?

Influenza, commonly known as the flu, is an infectious disease caused by an influenza virus. Complications of influenza may include viral pneumonia, secondary bacterial pneumonia, sinus infections, and worsening of previous health problems such as asthma or heart failure.

How long are you contagious with chickenpox?

If you have chickenpox you will be contagious (able to spread the virus) from up to 2 days before the red spots appear and until around 5 days after all scabs or crusts are dry.

How long are you contagious with a tummy bug?

Rotavirus. Symptoms of rotavirus — the leading cause of viral gastroenteritis in infants and young children — usually appear one to three days after exposure. But you're contagious even before you develop symptoms, and up to two weeks after you've recovered.

How do dogs get influenza?

Canine influenza virus can be spread via direct contact with respiratory secretions from infected dogs (via barking, coughing or sneezing), and by contact with contaminated inanimate objects.

What causes influenza A?

The flu is caused by influenza viruses that infect the nose, throat, and lungs. These viruses spread when people with flu cough, sneeze or talk, sending droplets with the virus into the air and potentially into the mouths or noses of people who are nearby.

How contagious is thrush?

While oral thrush in adults is not considered contagious, thrush can be passed back and forth from mother to infant during breast-feeding. Even though oral thrush in adults is not considered contagious, the yeast fungus can be spread through kissing. However, a yeast infection in itself may or may not occur.

What is influenza caused by?

Influenza, commonly known as the flu, is an infectious disease caused by an influenza virus. Symptoms can be mild to severe. Usually, the virus is spread through the air from coughs or sneezes.

Is canine influenza vaccine necessary?

Vaccination can reduce the risk of a dog contracting canine influenza. Vaccination may not all together prevent an infection, but it may reduce the severity and duration of clinical illness. The canine influenza vaccine is a "lifestyle" vaccine, and is not recommended for every dog.

How long is a dog with an upper respiratory infection contagious?

URI is contagious to other dogs and generally lasts 7-14 days. Dogs may require an antibiotic to help treat any secondary, bacterial infection. Ninety percent of canine upper respiratory infections are viral, caused most commonly by bordatella.

How contagious is brucellosis?

According to the U.S. Centers for Disease Control and Prevention (CDC), brucellosis is only weakly contagious because person-to-person spread of brucellosis is rare. Brucellosis is contagious as long as living bacteria are present in domestic and wild animals and/or their secretions, including milk products.

Is a fever contagious?

Viruses, with or without a fever, tend to be contagious. These droplets may contain virus even before one has developed a fever. Some examples of contagious illnesses that can be spread before a fever develop include: Flu: Contagious 1 day before symptoms start, until 5-7 days after.

What is the difference between influenza A and B?

While the symptoms of influenza B mirrors those of A, the main difference between the two strains is who it can affect. This allows strains of A to be spread more rapidly than B, while also meaning strains of B cannot cause pandemics with symptoms likely less severe. Flu shots protect against both strains of influenza.

How contagious is dog flu?

Dogs infected with CIV are most contagious during the two- to four- day virus incubation period, when they shed the virus in their nasal secretions but do not show signs of illness. The virus is highly contagious and almost all dogs exposed to CIV will become infected.

How long after throwing up are you contagious?

Symptoms of rotavirus — the leading cause of viral gastroenteritis in infants and young children — usually appear one to three days after exposure. But you're contagious even before you develop symptoms, and up to two weeks after you've recovered.

How long are you contagious with stomach virus?

Rotavirus. Symptoms of rotavirus — the leading cause of viral gastroenteritis in infants and young children — usually appear one to three days after exposure. But you're contagious even before you develop symptoms, and up to two weeks after you've recovered.

Is Haemophilus influenzae Gram positive or negative?

Haemophilus influenzae (formerly called Pfeiffer's bacillus or Bacillus influenzae) is a Gram-negative, coccobacillary, facultatively anaerobic pathogenic bacterium belonging to the Pasteurellaceae family. H. influenzae was first described in 1892 by Richard Pfeiffer during an influenza pandemic.

Is Parainfluenza the same as canine influenza?

Canine parainfluenza virus (CPIV) is a highly contagious respiratory virus and is one of the most common pathogens of infectious tracheobronchitis, also known as canine cough. Although the respiratory signs may resemble those of canine influenza, they are unrelated viruses and require different vaccines for protection.

Is the canine influenza vaccine necessary?

Currently, there are no canine influenza vaccines approved for use in cats. Vaccination can reduce the risk of a dog contracting canine influenza. Vaccination may not all together prevent an infection, but it may reduce the severity and duration of clinical illness.

How do you test for canine influenza?

Appropriate Samples for Detection At present the most reliable way to diagnose canine influenza virus infections is by serological tests. At present , the most reliable way to directly detect the virus is through a PCR test on either swabs (nasal swabs preferred) or respiratory tissue.

How contagious is C diff to a healthy person?

Yes, C. diff is contagious. Microorganisms can be spread from person-to-person by touch or by direct contact with contaminated objects and surfaces (for example, clothing, cell phones, door handles). However, these people are still infected with the bacteria can spread the infection to others.

How contagious is the dog flu?

Dogs infected with CIV are most contagious during the two- to four- day virus incubation period, when they shed the virus in their nasal secretions but do not show signs of illness. The virus is highly contagious and almost all dogs exposed to CIV will become infected.

How contagious is Giardia in dogs?

Giardia is spread through the feces or poop of infected dogs. Dogs become infected with Giardia by consuming Giardia cysts when drinking contaminated water, grooming, or consuming anything that is contaminated with the cyst. Giardia can be passed from dogs to humans through contaminated dog waste.

How contagious is hookworm in dogs?

Female hookworms pass hundreds of microscopic eggs in the feces of infected dogs, where they contaminate the environment. A dog may become infected when it inadvertently swallows hookworm larvae, often by grooming its feet, or from sniffing feces or contaminated soil.

How contagious is the MRSA virus?

Yes, MRSA is contagious. MRSA is a contagious staph infection that can spread from person to person through skin-to-skin contact or indirectly.

Is a dog eye infection contagious?

If your dog's conjunctivitis is viral, it is usually not contagious to you, but might be to other dogs, says Smith. If bacterial, it may be contagious to both humans and to other dogs. For non-contagious conjunctivis, your vet might recommend cold compresses, artificial tears or steroid eye drops.

How contagious is pneumonia in dogs?

B. bronchiseptica is highly contagious and may spread easily to other dogs. It usually causes 'kennel cough', an infection of the trachea and bronchi, but can spread deeper into the lungs, especially in young or old dogs, or dogs with a compromised immune system.

How contagious is E coli in urine?

Some E. coli bacteria are contagious while others are not, depending on the E. coli strain and/or the infection type. Some strains that cause gastrointestinal problems (enteropathogenic E. coli) can be transmitted person to person, usually by the oral/fecal route, and even indirectly by contaminated food or water.

Do dogs need influenza vaccine?

Recommended for the vaccination of healthy dogs as an aid in the control of disease associated with canine influenza virus H3N8 infection. The first licensed vaccine to protect against canine influenza, recommended for puppies and dogs in the following lifestyle situations: Puppy classes.

Can canine influenza infect humans?

In general, canine influenza viruses are thought to pose a low threat to people. To date, there is no evidence of spread of canine influenza viruses from dogs to people and there has not been a single reported case of human infection with a canine influenza virus in the U.S. or worldwide.

Can influenza affect the brain?

Flu may impact brain health. Summary: Although influenza is considered to be a respiratory disease, it has been associated with neurological symptoms in some cases. However, the long-term effects of flu on the brain have not been studied.

Is gastroenteritis contagious?

You can be contagious from a few days up to two weeks or more, depending on which virus is causing your stomach flu (gastroenteritis). The contagious period — the time during which a sick person can give the illness to others — differs slightly for each virus.

Is IBD contagious?

The exact causes are unknown. Some researchers think the disease is caused by a germ or by an immune system problem. You don't have to worry about your family members catching the disease from you, because it isn't contagious. However, inflammatory bowel disease does seem to run in families.

Is kennel cough contagious?

Infectious tracheobronchitis, commonly known as kennel cough, is a canine respiratory infection caused by Bordetella bronchiseptica and canine parainfluenza virus. Kennel cough is VERY contagious. It is named kennel cough because it can quickly spread through a kennel and infect every dog.

Is Canine Hepatitis contagious?

Infectious canine hepatitis (ICH) or hepatitis contagious canis (HCC), formerly known as “epizootic fox encephalitis,” is caused by canine adenovirus type 1 (CAV-1).

Is a yeast infection contagious in dogs?

Yeast dermatitis is not contagious; your dog did not get this infection from another dog. Opportunistic yeast infections often recur unless the underlying allergy or skin condition is controlled.

Is a dog ear yeast infection contagious?

Yeast dermatitis is not contagious; your dog did not get this infection from another dog. Opportunistic yeast infections often recur unless the underlying allergy or skin condition is controlled.

Is a dogs skin yeast infection contagious?

A common cause of a yeast skin infection is an increase in the amount of oils produced on the skin. Yeast dermatitis is not contagious; your dog did not get this infection from another dog. Opportunistic yeast infections often recur unless the underlying allergy or skin condition is controlled.

Is puppy mange contagious?

No, demodectic mange is not contagious to other animals or humans. Demodex mites are transmitted to puppies from their mother during the first few days of life. Since the mite is found on virtually all dogs, exposure of a normal dog to one with demodectic mange is not dangerous.