one mosquito sits on the hand, pierces the skin and sucks human blood. causes the disease malaria. mosquitoes are

hand skin blood sucking fever background mosquitoes scary forest green bites mosquito health insect disease human bite macro malaria pain animal medical parasite virus nature closeup epidemic illness infectious medicine sting summer pest dengue gnat parasitic sickness bug unhygienic sucker infection arm biology bloodsucker feeding people black body wing tropical