Diseases, Conditions, Syndromes

WHO: All of Sao Paulo state at risk for yellow fever

The World Health Organization announced Tuesday that it now considers all of Sao Paulo state at risk for yellow fever, recommending that all international visitors to the state be vaccinated.

Diseases, Conditions, Syndromes

Aedes aegypti mosquitos introduced to California multiple times

Aedes aegypti mosquitos can carry the pathogens that cause dengue fever, chikungunya, Zika fever, and yellow fever, among other diseases. In 2013, scientists first reported that A. aegypti had been found in California. Now, ...

Diseases, Conditions, Syndromes

Four reasons why we shouldn't forget about Zika

A group of researchers investigating yellow fever, in 1947, discovered a new virus in a sick monkey – the Zika virus. The researchers probably never imagined that nearly 70 years later this virus would rapidly spread across ...

Diseases, Conditions, Syndromes

Number of Zika, dengue and chikungunya cases drop in Brazil

The number of cases of Zika, dengue and chikungunya reported in Brazil during the first 6 ½ weeks of the year is nearly 90 percent less than in the same period in 2016, the Health Ministry said Wednesday.

Diseases, Conditions, Syndromes

Rio de Janeiro announces mass yellow fever vaccination

Rio de Janeiro said Saturday it plans to vaccinate the state's entire population against yellow fever in response to an outbreak that has killed at least 113 people around Brazil.

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