With the recent temperature dip in Delhi’s cold weather, there is a surge in cases of H1N1 infection, commonly known as Swine Flu. This is a subtype of the Influenza A virus which is highly contagious and creates human respiratory infections.
WHO (World Health Organisation) declared H1N1 as a pandemic in 2009, that year the virus caused an estimated 2,84,400 deaths worldwide. In 2010, the pandemic was over but the H1N1 flu strain from the pandemic became one of the strains that started causing seasonal flu.
