Widespread use of oral poliovirus vaccine has led to an ≈99.9% decrease in global incidence of poliomyelitis (from ≈350,000 cases in 1988 to 74 cases in 2015) and eradication of wild-type poliovirus serotypes 2 and 3. However, patients with primary immunodeficiency might shed vaccine-derived polioviruses (VDPVs) for an extended period, which could pose a major threat to polio eradication programs. Since 1995, sixteen VDPV populations have been isolated from 14 patients with immunodeficiency in Iran.

The spike in cases of encephalitis in Poorvanchal region has put district administration on tenterhooks.

Dengue is a dangerous debilitating disease that occasionally kills people and has no known cure or treatment.

Attesting India’s expanding role in fighting epidemics, Peter Piot, the co-discoverer of Ebola virus, said India is a key player in the global initiative to develop vaccines.

World's first dengue vaccine now approved in 11 countries (Getty Images)World's first dengue vaccine now approved in 11 countries (Getty Images)

Global withdrawal of serotype-2 oral poliovirus vaccine (OPV2) took place in April 2016. This marked a milestone in global polio eradication and was a public health intervention of unprecedented scale, affecting 155 countries. Achieving high levels of serotype-2 population immunity before OPV2 withdrawal was critical to avoid subsequent outbreaks of serotype-2 vaccine-derived polioviruses (VDPV2s).

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JAIPUR: The Electronic Vaccine Intelligence Network (or eVIN) rolled out by the Ministry of Health and Family Welfare in October 2015 across all districts of Rajasthan, is helping the state health

A polio-derived vaccine virus was earlier found in April in the Amberpet nala.

ICMR looking at newer vector control strategies, including a bacterium that limits virus growth.

According to a recent survey, 80 per cent of Delhi NCR residents are obese. In the year 2014, there were around 20 million obese women and 9.8 million obese men recorded in India alone.

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