Diseases, Conditions, Syndromes

Understanding the initial immune response after dengue virus infection

A study led by scientists at the Walter Reed Army Institute of Research sheds new light on the body's initial response to dengue virus (DENV) infection, describing the molecular diversity and specificity of the antibody response. ...

Diseases, Conditions, Syndromes

Video: Can coronavirus be transmitted by mosquitoes?

Can coronavirus be transmitted by mosquitoes? Mosquitoes are a vector for some of the world's deadliest diseases, like malaria, West Nile virus, and dengue fever, so it's natural to worry if they can also spread COVID-19.

Diseases, Conditions, Syndromes

Thai man dies from coronavirus infection complications

A Thai man has died from complications doctors say were due to the deadly coronavirus, though health officials were reluctant Monday to conclusively confirm the cause of his death.

Diseases, Conditions, Syndromes

Mosquitoes engineered to repel dengue virus

An international team of scientists has synthetically engineered mosquitoes that halt the transmission of the dengue virus.

Diseases, Conditions, Syndromes

In Baltimore, lower income neighborhoods have bigger mosquitoes

Low-income urban neighborhoods not only have more mosquitoes, but they are larger-bodied, indicating that they could be more efficient at transmitting diseases. So reports a Cary Institute of Ecosystem Studies-led study, ...

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Dengue fever

Dengue fever (pronounced UK: /ˈdɛŋɡeɪ/, US: /ˈdɛŋɡiː/) and dengue hemorrhagic fever (DHF) are acute febrile diseases, found in the tropics, and caused by four closely related virus serotypes of the genus Flavivirus, family Flaviviridae. It is also known as breakbone fever. The geographical spread includes northern Australia, northern Argentina, and the entire Singapore, Malaysia, Taiwan, Thailand, Vietnam, Indonesia, Honduras, Costa Rica, Philippines, Pakistan, India, Sri Lanka, Bangladesh, Mexico, Suriname, Dominican Republic, Puerto Rico, Jamaica, Bolivia, Brazil, Guyana, Venezuela, Barbados, Trinidad and Samoa. Unlike malaria, dengue is just as prevalent in the urban districts of its range as in rural areas. Each serotype is sufficiently different that there is no cross-protection and epidemics caused by multiple serotypes (hyperendemicity) can occur. Dengue is transmitted to humans by the Aedes aegypti or more rarely the Aedes albopictus mosquito, which feed during the day.

The WHO says some 2.5 billion people, two fifths of the world's population, are now at risk from dengue and estimates that there may be 50 million cases of dengue infection worldwide every year. The disease is now epidemic in more than 100 countries.

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