The H1N1 flu, commonly known as swine flu, is primarily caused by the H1N1 strain of the flu (influenza) virus. H1N1 is a type of influenza A virus, and H1N1 is one of several flu virus strains that can cause the seasonal flu. Symptoms of the H1N1 flu are the same as those of the seasonal flu.

What is H and N in flu?

Influenza A viruses are divided into subtypes based on two proteins on the surface of the virus: hemagglutinin (H) and neuraminidase (N).

Is H1N1 same as Spanish flu?

The 1918 Spanish flu was the first of three flu pandemics caused by H1N1 influenza A virus; the most recent one was the 2009 swine flu pandemic.

Is h1 contagious?

CDC has determined that this H1N1 influenza A virus is contagious and is spreading from human to human. However, at this time, it is not known how easily the virus spreads between people.

Is it possible to catch H1N1 twice?

Is it possible to catch A(H1N1) twice? Yes, because the virus can mutate (change). If you become infected with the swine flu virus, your body produces antibodies against it, which will recognize and fight off the virus if the body ever meets it again.

What does the 1 in H1N1 stand for?

Medical Definition of H1N1 Note: The subtype H1N1 is distinguished by a mutation of hemagglutinin (H1) that affects the ability of the virus to infect cells, and a mutation of a neuraminidase (N1) that enables the release of the replicated virus from cells.

What do the H and N in H1N1 represent?

The designation “H1N1” indicates unique traits, which exhibit characteristics that identify the virus to the immune system and allows for attachment and replication of the virus. The “H” (hemagglutinin) and the “N” (neuraminidases) are both proteins that are found on the outer shell or envelope of the virus.

Can H1N1 be asymptomatic?

Study results revealed an overall pooled prevalence for asymptomatic carriers of 19.1% for any type of influenza, 21.0% for influenza A, and 22.7% for influenza A(H1N1).

What steps can someone take to prevent or treat H1N1 influenza?

H1N1 (Swine Flu) Prevention and Treatment

  • Covering your nose and mouth with a tissue when you cough or sneeze.
  • Washing your hands often with soap and water, especially after you cough or sneeze.
  • Avoiding touching your eyes, nose or mouth.
  • Trying to avoid close contact with sick people.

Is H1N1 airborne?

The 2009 H1N1 virus is not zoonotic swine flu, as it is not transmitted from pigs to humans, but from person to person through airborne droplets.