Slide 1

MosquitoesAnd how the spread Diseases

What is a MosquitoesThe mosquitoes are a family of small, midge-like flies: the Culicid. Although a few species are harmless or even useful to humanity, most are a nuisance because they suck blood from vertebrates

Life CycleLike all flies, mosquitoes go through four stages in their life cycle: egg, larva, pupa, and adult or imago. In most species, adult females lay their eggs in standing water; some lay eggs near the water's edge

eggslarvapupaadultTypes of Mosquitoes:AedesAnophelesCulexone of the most dangerous types of mosquito, the Aedes is anthropophagic, that is, it feeds on the blood of humans. Only the female mosquito bites. It transmits among humans menacing diseases such as yellow fever and dengue feverThe Anopheles is different from other types of mosquitoes as it is the genus most accountable for spreading malaria to humans. Malaria can be fatal; its typical symptoms include fever, headaches, chills, and general flu symptomsThe genus of mosquito known as the Culex can be considered the least dangerous of the three major types of mosquitoes due to the fact that humans are not their preferred blood meal. Instead, most species of Culex are partial to biting birds rather than humans.Mosquitoes in HousesThe researchers found that 54 percent of surveyed households were positive for mosquitoes, with the Asian tiger mosquito, Aedes albopictus, and the common house mosquito, Culex pipiens, being the dominant species; both of these species are known vectors of West Nile virus. However, while knowledge of mosquito-borne disease and mosquito breeding sites was higher among upper-income households than middle-income households, lower-income households and neighborhoods showed greater overall concern about mosquito biting and mosquito-borne disease.Mosquitoes PopulationMosquitoes RegionsTypes of Diseases: Eastern Equine Encephalitis Japanese Encephalitis La Crosse Encephalitis St. Louis Encephalitis West Nile Virus Western Equine Encephalitis Dengue Fever Malaria Rift Valley Fever Yellow Fever

How Diseases are SpreadMosquitoes can spread infection simply at what time when they bite their victim. Even though it is usually called a "bite", the procedure is in fact a piercing-sucking action. Just the feminine (female) mosquito bites, and receives a blood meal. If the victim's blood has disease-causing organisms, they get also sucked into the mosquitos stomach. These organisms are then preserved within the mosquito and sooner or later may be instilled into the next victim's bloodstream. This way the mosquito can spread virus from animal to animal, animal to human being, or else even from individual to individual.

PreventionYou are most at risk for mosquito bites - particularly in the islands as the sun lowers; use extra caution at dusk. Pay attention under the tables when eating in Southeast Asia. Mosquitoes would love to enjoy you as a meal while you eat your own. If staying in a place with a mosquito net, use it! Check for holes and apply DEET to any breeches. Do the same for any broken window screens around your accommodation. Mosquitoes are attracted to body odor and sweat; stay clean to avoid attracting unnecessary attention from mosquitoes and clean travel mates. Unfortunately, DEET remains the most effective known way to prevent mosquito bites. Reapply smaller concentrations of DEET every three hours to exposed skin. Although the hot climate usually dictates otherwise, the most natural way to prevent mosquito bites is to expose as little skin as possible.

Pa Dubree 1925- present

11Thats all Folks

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