Search results
Results From The WOW.Com Content Network
Tropical diseases are diseases that are prevalent in or unique to tropical and subtropical regions. [1] The diseases are less prevalent in temperate climates , due in part to the occurrence of a cold season, which controls the insect population by forcing hibernation .
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more
العربية; অসমীয়া; Azərbaycanca; বাংলা; Башҡортса; Беларуская; Беларуская (тарашкевіца)
Just reading the Centers for Disease Control and Prevention's Travel page, with its list of some 60-odd diseases from African Sleeping Sickness to Yellow Fever may be enough to make you.
Infectious diseases have played a significant role in human history, impacting the rise and fall of civilizations and facilitating the conquest of new territories. [16] During recent decades, there are significant regional changes in vector and pathogen distribution reported in temperate, peri‐Arctic, Arctic, and tropical highland regions.
The World Health Organization (WHO) reports that 105 million people have been vaccinated for yellow fever in West Africa from 2000 to 2015. [43] To date, there are relatively few vaccines against mosquito-borne diseases, this is due to the fact that most viruses and bacteria caused by mosquitos are highly mutatable.
The bases of tarsomeres I through IV have a ring of white scales, creating the appearance of white and black rings. On the forelegs and middle legs, only the first three tarsomeres have the ring of white scales, whereas tarsomere V on the hind legs is completely white. The femur of each leg is also black with white scales on the end of the "knee".
Yaws is a tropical infection of the skin, bones, and joints caused by the spirochete bacterium Treponema pallidum pertenue. [6] [7] The disease begins with a round, hard swelling of the skin, 2 to 5 cm (0.79 to 1.97 in) in diameter. [6] The center may break open and form an ulcer. [6] This initial skin lesion typically heals after 3–6 months.