United States Virginia change
Sri Lanka Breaking News
Sri Lanka parliament
vivalankaSri Lanka newsSri Lanka businessSri Lanka sportsSri Lanka technologySri Lanka travelSri Lanka videosSri Lanka eventssinhala newstamil newsSri Lanka business directory
vivalanka advertising
Stay Connected
Popular Searches
T20 World Cup
Sponsored Links
Sri Lanka Explorer

Whooping cough questions focus on the final childhood booster shot

Jan 2, 2011 7:50:00 PM - latimes.com
An increase in the illness among 7- to 10-year-olds would mean that the fifth dose does not last long enough.

The dramatic surge in whooping cough in California in 2010, when 10 infants were killed by the bacterium and more people were sickened than in any year since 1947, has scientists looking for answers.

USA, California: (Latest Stories)