Mosquito-borne diseases are illnesses transmitted to humans through the bites of infected mosquitoes. Common examples include malaria, dengue fever, Zika virus, and West Nile virus. These diseases can cause a range of symptoms, from mild fever to severe illness, and can sometimes be life-threatening. Preventing mosquito-borne diseases involves reducing mosquito populations and avoiding bites. This can be achieved by using insect repellent, wearing protective clothing, and eliminating standing water where mosquitoes breed. Public health efforts also focus on educating communities about prevention and control measures to reduce the risk of transmission.