This Old House: What Is Influenza Virus

Friday, June 4, 2021

What Is Influenza Virus

Influenza or flu is a viral infection that affects the respiratory system. What is Influenza Flu.

Influenza Vs Covid 19 What S The Difference Nhcoa

COVID-19 seems to spread more easily than flu and causes more serious illnesses in some people.

What is influenza virus. Influenza also known as the flu is a viral respiratory illness that is most prevalent during fall and winter months. It is a contagious disease of the respiratory tract caused by influenza viruses. Influenza A is one of four types of the virus which can cause a cough body aches and a sore throat.

The emergence of a new and very different influenza A virus with the ability infect people and have sustained human to human transmission can cause an influenza pandemic. Influenza Flu and COVID-19 are both contagious respiratory illnesses but they are caused by different viruses. The best way to prevent flu is by getting a flu vaccine each year.

Influenza flu is a potentially life threatening illness. Types A and B. Influenza A viruses can be broken down into sub-types depending on the genes that make up the surface proteins.

Influenza A viruses are the only influenza viruses known to cause flu pandemics ie global epidemics of flu disease. Learn more about the classification of influenza viruses influenza outbreaks and. It can cause mild to severe illness and at times can lead to death.

Viruses that infect humans circulate in seasonal epidemics although some tropical regions experience endemic influenza circulation. These viruses can spread when a person with the infection sneezes or coughs. The influenza A and B viruses that routinely spread in people human influenza viruses are responsible for seasonal flu epidemics each year.

A pandemic can occur when a new and very different influenza A virus emerges that both infects people and has the ability to spread efficiently between people. Influenza B virus is almost exclusively a human pathogen and is less common than influenza A. Flu is a contagious respiratory illness caused by influenza viruses that infect the nose throat and sometimes the lungs.

42 This type of influenza mutates at a rate 23 times lower than type A 43 and consequently is less genetically diverse with only one influenza B serotype. The flu or influenza is a highly contagious viral infection that mainly affects the respiratory system. Influenza acute viral infection of the upper or lower respiratory tract marked by fever chills and a generalized feeling of malaise.

Occasionally animal influenza viruses may also infect humans. Influenza viruses can infect humans and other animals. Influenza A viruses infect humans and many different animals.

The only other animal known to be susceptible to influenza B infection is the seal. Each year influenza causes serious infection and death around the globe usually in the winter months seasonal influenza. COVID-19 is caused by infection with a new coronavirus called SARS-CoV-2 and flu is caused by infection with influenza viruses.

Types A B C and D. There are four types of influenza viruses. Influenza viruses are continuously changing necessitating annual updates of influenza vaccine formulations.

Influenza Flu Viruses There are two main types of influenza flu virus. Its usually a seasonal illness with yearly. Influenza is caused by viruses in the family Orthomyxoviridae.

Influenza Virus A H1n1 Schulke Mayr Gmbh