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COVID-19 FAQ: What Is Herd Immunity?

What is herd immunity? In case of epidemics, it is usually seen that a certain percentage of the population acquires immunity to the virus or bacteria that is behind the health crisis. When majority of the people in a particular community becomes immune to the infection, the community is said to have achieved herd immunity. Of course, this immunity depends on many things like what precautions people are taking, mutation of the virus and such other factors. In this video, Dr Randeep Guleria, Director, All India Institute of Medical Sciences, New Delhi, sheds light on herd immunity in terms of the COVID-19 contagion in India.

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Swine Flu Outbreak: H1N1 Flu Spreads, Know What Are The Symptoms, Causes & Treatment, Watch Video

Like other strains of the flu, H1N1 is highly contagious, allowing it to spread quickly from person to person. A simple sneeze can cause thousands of germs to spread through the air. The virus can linger on tables and surface areas like door knobs, waiting to be picked up risk factors for getting swine flu are the same as for any other strain of the flu. You're most at risk if you spend time in an area with a large number of people who are infected with swine flu. Some people are at higher risk for becoming seriously ill if they're infected with swine flu