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One of the first studies of the effectiveness of flu vaccine in young children suggests that vaccination should be considered for youngsters before they reach their first birthday. Older adults are considered to have the greatest chance of dying from
VOA标准英语2010年(十一)月
Groups Resisting Global Polio Vaccination Efforts Health officials in Pakistan say they are redoubling efforts to vaccinate every child against polio after 198 new cases were reported in the country last year, the largest number anywhere in the world
VOA标准英语2012年(六月)
Haiti's Cholera Epidemic Not Waning;Vaccination to Begin The United States' most prominent public health agency is calling the cholera epidemic in Haiti the worst cholera outbreak in recent history. The U.S. Centers for Disease Control and Prevention
VOA标准英语2011年(十一月)
Mom's Flu Vaccination Boosts Baby Birth Weight Pregnant women who get vaccinated against influenza are less likely to have low birth weight babies, according to a study conducted in Bangladesh. In this study, 340 pregnant women were randomly assigned
VOA标准英语2012年(二月)
This is the VOA Special English Development Report. An Afghan girl receives a dose of polio vaccine The World Health Organization has begun to use a new vaccine against polio. Officials say it will become a major tool in the campaign to end a disease
2010年慢速英语(一)月
Steve Baragona Polio is on the ropes. A $3 billion global campaign has driven the crippling and sometimes-fatal disease to just six source countries. Experts say the campaign has the potential to win
VOA2004（上）--国际时事