With the season changing, flu is taking it chances to attack us. Have you wondered how many strains of flu are there? Here we break it down to you, just keep reading.
Flu is a viral infection that causes fever, headache, sore throat, cough and can lead to serious illness.
While flu viruses are spread through air-borne droplets from an infected person, they can also be passed on by touching or coughing.
It’s estimated that every year around 200 million people get the flu in Europe alone.
Flu is a contagious respiratory disease that infects humans and animals.
It can cause symptoms like fever, cough, sore throat, headache, muscle aches, chills and fatigue.
Flu occurs when a virus passes from an infected person to another person through coughing, sneezing or touching.
Flu viruses are different from one another, but they have some things in common.
They all cause illness in humans. And once someone has the flu, they can spread it to others if they touch them or get close enough to them.
Flu strain is the name given to the viruses that are common in a particular year.
It helps medical researchers to identify which strains are most commonly circulating and can be used to predict which virus will predominate in a given year.
What is Flu Strain?
If you are a regular user of the Internet, then you are most likely to have come across this word.
Most of us use it to mean influenza virus in the sense that they are a species of viruses that cause influenza or influenza-like illnesses.
In other words, flu strain means a particular type of influenza virus that causes an infection.
The Strains of Flu
Flu viruses are divided into seven types based on the proteins they contain. These types are: A, B, C, D, E, H1N1 and H3N2.
There are three strains of flu which are causing a lot of concern in the world right now.
The strains of flu are such as Influenza A (H1N1), Influenza B (H3N2) and Influenza C (H7N9).
Influenza A (H1N1) is a pandemic virus that began to cause infections in humans worldwide in 2009.
It is suspected of causing more deaths than any other flu strain, and has caused serious illness and even death in particularly young people, the elderly and those with a weakened immune system.
There are currently no treatments or vaccines available for this virus. However, research on new therapies is ongoing.
Influenza B (H3N2) is a common type of flu that causes severe illness in approximately 30% of cases.
It typically spreads through contact with respiratory secretions, such as saliva or mucus, from an infected person.
In recent years, this virus has spread rapidly and caused widespread outbreaks in many parts of the world.
As with Influenza A (H1N1), there are currently no treatments or vaccines available for people who become infected with this virus.
However, research on new therapies is underway.
Influenza C (H7N9) is a novel flu strain that has so far been found only in people who have had close contact with animals or birds.
It can cause severe illness, and there are currently no specific treatments or vaccines available for it.
While the number of infections cases attributed to this virus is still relatively low, concerns about its potential to become a major global health threat are high.
In conclusion, as flu season is coming up, there are many people worried about the flu.
There are three strains of flu. Influenza A (H1N1) can be spread by coughing and sneezing.
Influenza B can be spread by direct contact with respiratory droplets and contaminated surfaces or objects.
Influenza C is an RNA virus that has not been associated with human-to-human transmission.
It may cause mild illness in some people but usually no symptoms at all.
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