Rift Valley Fever (RVF)

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DEFINITION Rift Valley Fever (RVF) is an acute viral disease that can severely affect various species of domestic animals (such as buffaloes, camelids, cattle, goats and sheep), as well as humans. The incubation period between infection and the first symptom is from 02 to 06 days.WHAT ANIMALS ARE MORE AFFECTED? Ruminants (mainly cattle, but also sheep, goats, etc.) are susceptible. Breeders, slaughterhouse workers, veterinarians, etc. are at risk for RVF. HOW IS THE DISEASE TRANSMITTED? By inoculation, in case of injury caused during slaughter, through mosquito bites (Aedes, Culex), ingestion of raw milk or poorly or uncooked meat from infected animals.WHAT ARE THE SIGNS AND SYMPTOMS? In animals: RVF results in a severe clinical picture, with fever, abortions, as well as high morbidity and mortality. In humans: the disease can be asymptomatic or have a mild condition (fever, asthenia, muscle pain, dizziness, etc.); therefore, severe forms of the disease, patients may be able to present a clinical picture of hemorrhagic fever, encephalitis, eye pathology.WHAT ARE THE PREVENTION AND CONTROL MEASURES? Continuously monitor sensitive animals and notify cases immediately; Control mosquitoes and avoid mosquito bites, especially during winteringVaccine animals at riskAvoid handling abortions or animals or products of suspicious animals, without protective measuresSleep donations of mosquito nets or use products Insect repellent Avoid outdoor activities at the time or mosquito bites the most; Avoid handling abortions, animals or suspicious animal products.