The dictionary states the definition as âin a literal way or senseâ but adds that, informally, it can be âused for emphasis rather than being actually trueâ such as âwe were literally killing ourselves laughingâ. The definition was added in the September 2011 edition, but went unnoticed until this week.
Strictly speaking, it is not AIDS but HIV that spreads through blood, semen and from a mother to child. Mosquitoes cannot transmit HIV for two reasons. Firstly, when the mosquito bites with its probosis, it draws blood and injects saliva, which contains antiviral factors and immunoglobulins and hence cannot transmit HIV. The blood from one person is not injected into the mosquito's next victim.
In fact, the name mosquito comes from the Spanish word that means small fly. Most people recognize how bothersome mosquitoes can be when they are buzzing and biting. Many people do not realize that mosquitoes are vectors of several human diseases including malaria, encephalitis, yellow fever, dengue, and filariasis.cientists think that this is because the water surface is most calm at night so there is less risk of the insect drowning. Many different species of mosquitoes bite at different times of the day. Many mosquitoes that are important as disease vectors bite at night âfrom dusk to dawn.