What are the causes of Rift Valley fever?

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Rift Valley fever (RVF) is an acute viral zoonosis caused by RVF virus and transmitted by mosquito vector or contact. It mainly affects animals, but it can also infect people. The initial symptoms are: fever, headache, fatigue, joint and muscle pain, sometimes nausea and vomiting, conjunctivitis and photophobia in some patients; What are the causes of Rift Valley fever? Let's talk about it

What are the causes of Rift Valley fever?

Rift Valley fever virus (RVFV) is one of the five viruses of Bunyaviridae. Most human infections are caused by direct or indirect contact with the blood or organs of infected animals.

The virus can be transmitted to humans through slaughtering, assisted delivery, veterinary procedures, or handling of animal tissues during carcass or embryo processing. Therefore, some occupational groups, such as herdsmen, farmers, slaughterers and veterinarians, are at higher risk of infection.

There is evidence that people may also be infected with RVF if they ingest milk from infected animals that have not been sterilized or boiled. The bite of an infected mosquito can also lead to human infection, usually an Aedes mosquito bite. Bloodthirsty flies may also transmit RVF virus.

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The live attenuated vaccine has been used in human and animals in South Africa. In recent years, the formaldehyde inactivated vaccine has been used in veterinarians and other people with high risk of infection, which can be immunized for more than two years.