Vaccinations

4:33pm

Mon September 10, 2012
Shots - Health Blog

Vaccine For Dengue Fever Shows A Glimmer Of Hope

A health worker in the Domincan Republic sprays insecticide between houses to stop dengue fever outbreaks this month.
Erika Santelices AFP/Getty Images

It's human nature to hope for positive results after spending months or even years conducting a research study. In well-designed studies, however, scientists identify in advance the criteria for success, so their optimism won't color their conclusions when the study is completed.

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11:23am

Tue September 4, 2012
Shots - Health Blog

Zanzibar Shows Cholera Vaccine Can Protect Even The Unvaccinated

Originally published on Wed September 5, 2012 12:09 pm

A vaccine against cholera bacteria like these protected people in Zanzibar.
CDC

Cholera vaccine gives indirect protection to unvaccinated people in communities where a substantial fraction of the population gets the vaccine, a study in Africa shows.

The effect is called "herd immunity." It works because there are fewer bacteria circulating in communities where vaccination levels are relatively high.

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8:18am

Wed August 29, 2012
Shots - Health Blog

When Flu Hits, Kids With Neurological Problems Are Vulnerable

People wait in line at the Durham County Health Department for the H1N1 flu vaccination in Durham, N.C., in November 2009.
Gerry Broome AP

Flu is most deadly for children with neurologic problems and disorders, an analysis of swine flu fatalities finds.

The results come from Centers for Disease Control and Prevention researchers who looked at childhood fatalities during the H1N1 flu pandemic of 2009, when there were five times the usual number of deaths.

In all, 43 percent of the deaths occurred in children who had neurologic diseases, such as cerebral palsy and epilepsy, or developmental disorders.

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2:14pm

Fri August 17, 2012
Shots - Health Blog

WHO Calls For Emergency Stockpile Of Cholera Vaccine

Originally published on Fri August 17, 2012 3:11 pm

Thousands of doses of cholera vaccine sit in a refrigerated trailer in a United Nations compound in Saint-Marc, Haiti, in March. After some delays, a vaccination project proved successful.
John Poole NPR

A month ago the results of a successful cholera vaccine project in Haiti became available. Now the World Health Organization is calling for the establishment of a global stockpile of the vaccine to respond to outbreaks like Haiti's.

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4:33pm

Fri August 3, 2012
Shots - Health Blog

Experts Fear Whooping Cough Vaccine's Shield Is 'Waning'

Originally published on Fri August 3, 2012 7:29 pm

Pharmacist Kristy Hennessee administers a vaccination against whooping cough in Pasadena, Calif., in 2010. Vaccinations are the most powerful weapon for slowing the epidemic, but there are growing concerns that the current vaccine doesn't last as long as expected.
Robyn Beck AFP/Getty Images

Whooping cough is getting a foothold once again in the U.S., and it seems to be getting stronger. More than 20,000 cases have been reported so far this year, compared with only about 8,500 last year, and Washington State has already declared a whooping cough epidemic.

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