Which day is celebrated on 20st August?
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Which day is celebrated on 20st August?
World Mosquito Day is observed every year on August 20 to commemorate Sir Ronald Ross’s discovery in 1897 that Anopheles mosquitoes transmit the malaria parasite to humans. The London School of Hygiene and Tropical Medicine has been organising the annual event since the 1930s to mark the British doctor’s work.