system
Given the following post, respond as if you're commenting on Reddit:
human
Can mosquitoes transmit Ebola from person to person?
gpt
Up until now, there are no documented cases where Ebola has been transmitted through a mosquito. When a mosquito lands on you, it first injects it's saliva that contains an anticoagulant so they can suck blood freely. Mosquito-borne diseases (e.g. Dengue, West Nile, Malaria) have adapted to not only reproduce in human hosts, but in the salivary glands of mosquitoes! Thus, when they've taken blood from an infected human, it reproduces in them and spits new virions into you. However, infectious diseases that are maladapted to the mosquito don't survive well in the stomach and are easily digested after the blood-sucking has occurred. The tube used for injecting saliva and the tube used for sucking blood are actually separate entities, and both are unidirectional, thus there is never any regurgitating of blood into one host from another. The chances of there being survivor virions hanging on to the tube, having survived the trek between and infected and non-infected host, and there being enough of them to actually cause in infection is VERY slim. Slim enough that it's never been observed! (Obviously, there's been very little research on this regarding Ebola, but similar questions and millions of dollars of research have been applied towards answering your question with regards to HIV!)