West Nile Virus - an explainer

The video explains the transmission cycle of a mosquito-borne disease, highlighting how mosquitoes transmit the virus between birds and occasionally to humans. Most infected humans show no symptoms, but some develop flu-like symptoms, and a few may experience severe neurological effects. The virus is related to Japanese encephalitis and dengue fever, with a structure that includes a nucleocapsid and RNA. It attacks the central nervous system, potentially causing serious conditions like encephalitis. Prevention involves avoiding mosquito bites by staying indoors during peak times and using protective clothing and repellent.

What is the primary transmission cycle of the mosquito-transmitted disease?

• Mosquito bites a human, then another human

• Mosquito bites an infected bird, then a healthy bird

• Human bites a mosquito, then another human

• Bird bites a mosquito, then another bird

Which family of diseases does the mosquito-transmitted virus belong to?

• Influenza and common cold

• Ebola and Zika virus

• Japanese encephalitis and dengue fever

• Malaria and yellow fever

What does the virus do once it reaches the central nervous system?

• It attacks the liver

• It multiplies in the bloodstream

• It injects RNA into host cells

• It causes immediate paralysis

What are some symptoms experienced by symptomatic patients?

• Fever, headache, nausea, and skin rashes

• Cough, sore throat, and runny nose

• Joint pain, fatigue, and dizziness

• Blurred vision, hearing loss, and insomnia

What preventive measures can be taken to avoid infection?

• Avoiding outdoor activities at dusk or dawn and using mosquito repellent

• Drinking plenty of water

• Taking antibiotics regularly

• Wearing sunglasses and hats