19th May 2016

Fatality of the Ebola virus

The deadly Ebola virus was first reported in Zaire in 1978. It spreads through the blood and causes haemorrhage in all organs. Internal bleeding results in shock and death. There are no drugs or vaccines against this disease. Fatality rates of the Ebola virus disease have varied from 20 to 90 per cent in the past.

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13th April 2016

Who began the practice of vaccination?

The word ‘vaccine’ is derived from the Latin word vacca meaning cow. A vaccine is prepared from killed microbes or other substances that resemble the activity of the organisms that are known to cause the disease. English physician and scientist Edward Jenner established the system of vaccination. He used the vaccination material extracted from virus of affected cows.

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