An edible vaccine for hepatitis B is in the final stages of development. Once ready, it will work just as the existing vaccine that is injected and used widely around the world does. The current
chronic bronchitis caused by air pollution affects 24,000 adults and 2.2 lakh children each year, reveals a study by the Nagpur-based National Environment Engineering Research Institute
a carcinogenic gas called cokeoven leaked from the gas supply lines of the Durgapur Steel Plant (dsp), West Bengal, in the last week of December, 2000. The leak took place when a fire