WHO says single yellow fever shot is enough

(AP)—The World Health Organization says a yellow fever booster vaccination given 10 years after the initial shot isn't necessary.

The U.N.'s agency said Friday that its expert group on immunization believes a single dose of vaccination is sufficient to confer lifelong immunity against the disease.

The Geneva-based body says only 12 known cases of yellow fever after vaccination have ever been identified. Some 600 million doses have been dispensed since yellow fever vaccination began in the 1930s.

Yellow fever is an acute viral hemorrhagic disease transmitted by infected mosquitoes that is endemic to 44 countries in of Africa and the Americas.

There are an estimated 200,000 cases of yellow fever and up to 15,000 deaths worldwide each year.

not rated yet
add to favorites email to friend print save as pdf

Related Stories

Darfur yellow fever outbreak worst in decades

Dec 06, 2012

An outbreak of mosquito-borne yellow fever which has killed at least 165 people in Sudan's Darfur region is Africa's worst in decades, the World Health Organisation said on Thursday.

WHO: 107 dead from yellow fever in Darfur, Sudan

Nov 13, 2012

(AP)—A yellow fever outbreak in Sudan's Darfur region has killed 107 people in the last six weeks, the World Health Organization reported Tuesday, warning that the disease could spread all over the country.

Yellow fever shots begin in Sudan's Darfur

Nov 22, 2012

Health workers in Sudan's Darfur region have begun vaccinating more than two million people against a rare yellow fever outbreak suspected of killing 124 since late September, medics said on Thursday.

Recommended for you

Cooling of dialysis fluids protects against brain damage

10 hours ago

While dialysis can cause blood pressure changes that damage the brain, cooling dialysis fluids can protect against such effects. The findings come from a study appearing in an upcoming issue of the Journal of the American So ...

Two Ebola vaccines to be tested in Switzerland

11 hours ago

Clinical trials of two experimental vaccines against the deadly Ebola virus are due to begin soon in Switzerland, the country's Tropical and Public Health Institute said on Thursday.

Legionnaire's disease kills four in Spain

15 hours ago

Four people have died from an outbreak of the lung infection Legionnaire's disease in northeastern Spain, regional health authorities said Thursday.

User comments