Question: What Disease Does The Influenza Virus Cause?

What does the influenza virus do?

Influenza is a viral infection that attacks your respiratory system — your nose, throat and lungs.

Influenza is commonly called the flu, but it’s not the same as stomach “flu” viruses that cause diarrhea and vomiting..

What disease does influenza B cause?

If left untreated, or in more severe cases, influenza B can cause: pneumonia. bronchitis. respiratory failure.

What are the stages of flu?

What to expect with the fluDays 1–3: Sudden appearance of fever, headache, muscle pain and weakness, dry cough, sore throat and sometimes a stuffy nose.Day 4: Fever and muscle aches decrease. Hoarse, dry or sore throat, cough and possible mild chest discomfort become more noticeable. … Day 8: Symptoms decrease.

How long is influenza contagious?

People with flu are most contagious in the first three to four days after their illness begins. Most healthy adults may be able to infect others beginning 1 day before symptoms develop and up to 5 to 7 days after becoming sick.

Does flu come on fast?

Flu: Comes on Fast and Furious Symptoms like sore throat, fever, headache, muscle aches, congestion, and cough tend to come on suddenly. Colds are usually less intense and include a runny or stuffy nose. The flu gets better over 2 to 5 days, but you might feel run-down for a week or longer.

What strain of flu is going around 2020?

The committee recommended that the quadrivalent formulation of cell- or recombinant based influenza vaccines for the U.S. 2020-2021 influenza season contain the following: an A/Hawaii/70/2019 (H1N1) pdm09-like virus; an A/HongKong/45/2019 (H3N2)-like virus; a B/Washington/02/2019- like virus (B/Victoria lineage);

How long should you stay home with the flu?

Individuals with suspected or confirmed flu, who do not have a fever, should stay home from work at least 4-5 days after the onset of symptoms. Persons with the flu are most contagious during the first 3 days of their illness.

Is Flu A or B worse?

Frequently asked questions about Influenza A and B Influenza type A and type B are similar, but type A is overall more prevalent, sometimes more severe, and can cause flu epidemics and pandemics.

How is influenza B virus treated?

Oseltamivir (Tamiflu) and zanamivir (Relenza) are drugs that doctors may use to treat type A or type B influenza. Antiviral drugs can reduce a person’s recovery time by around 2 days, but they are only effective if a person takes them within a few days of symptoms starting.

What is the difference between Flu A and Flu B?

Unlike type A flu viruses, type B flu is found only in humans. Type B flu may cause a less severe reaction than type A flu virus, but occasionally, type B flu can still be extremely harmful. Influenza type B viruses are not classified by subtype and do not cause pandemics.

How long does the 2020 flu last?

Most people who become sick will recover in a few days to less than two weeks, but some people may become more severely ill. Following flu infection, moderate complications such as secondary ear and sinus infections can occur.

What are symptoms of Type A flu?

Influenza A symptomscoughing.runny or stuffy nose.sneezing.sore throat.fever.headache.fatigue.chills.More items…

How does influenza start?

When you get the flu (influenza), it will often start with mild muscle aches, a slight tickle in the throat, or a worn-out feeling you just can’t shake. Common wisdom suggests that if you treat flu when symptoms first appear, you may be able to shorten the duration and severity of the illness.

Does the flu go away on its own?

If you have influenza, you can expect the illness to go away on its own in about 7 to 10 days. In the meantime, you can take steps to feel better: Get extra rest.

Is flu A virus or bacteria?

What is Influenza (Flu)? Flu is a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and sometimes the lungs. It can cause mild to severe illness, and at times can lead to death. The best way to prevent flu is by getting a flu vaccine each year.