Yellow fever is a dangerous mosquito-borne virus that, for hundreds of years, has caused sporadic, deadly outbreaks in the tropics of South America, Central America, and Africa. According to a new ...

A species of invasive, "aggressive" mosquitoes known for transmitting yellow fever is spreading in California, according to local health officials. Multiple counties across the state, including Contra ...

University of Queensland researchers have captured the first high-resolution images of the yellow fever virus (YFV), a potentially deadly viral disease transmitted by mosquitoes that affects the liver ...

An ongoing outbreak of yellow fever in Colombia is sickening and killing rare and threatened monkey species in captivity, a new study shows. Between February and May 2025, authorities reported eight ...

Encephalitis, Yellow Fever, Malaria Disease, Mayaro or Zika Virus Infected Culex Mosquito Parasite Insect Macro. [Courtesy/GettyImages] Kenya has recently experienced a worrying rise in mosquito-borne ...

The invasive species was discovered in Livermore earlier this month. This type of mosquito is aggressive during the daytime and tends to target ankles. The Aedes aegypti mosquito can transmit dengue, ...

Why can the human immune system often remember a vaccination for a whole lifetime? Researchers at ...

Costa Rica and El Salvador have taken a key step in modernizing public health by issuing the first digital yellow fever vaccination certificates in the Americas. This move, backed by the ...

In 1900, Dr Jesse Lazear died after being bitten by a mosquito carrying yellow fever, helping prove the disease was ...