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Leishmaniasis is a wide array of clinical manifestations caused by protozoal parasites of the Trypanosomatida genus Leishmania. [7] It is generally spread through the bite of phlebotomine sandflies, Phlebotomus and Lutzomyia, and occurs most frequently in the tropics and sub-tropics of Africa, Asia, the Americas, and southern Europe.
Visceral leishmaniasis (VL), also known as kala-azar (Hindi: kālā āzār, "black sickness") [2] or "black fever", is the most severe form of leishmaniasis and, without proper diagnosis and treatment, is associated with high fatality. [3] Leishmaniasis is a disease caused by protozoan parasites of the genus Leishmania.
[6] [7] The whole genome sequence of L. donovani obtained from southeastern Nepal was published in 2011. [8] L. donovani sensu stricto is in a species complex with the closely related L. infantum, which causes the same disease. The former is commonly found in East Africa and the Indian subcontinent, while the latter is found in Europe, North ...
Quizlet was founded in 2005 by Andrew Sutherland as a studying tool to aid in memorization for his French class, which he claimed to have "aced". [6] [7] [8] Quizlet's blog, written mostly by Andrew in the earlier days of the company, claims it had reached 50,000 registered users in 252 days online. [9]
The characteristic red, spotted rash of Rocky Mountain spotted fever is usually not seen until the sixth day or later after onset of symptoms, but this type of rash occurs in only 35 to 60% of patients with Rocky Mountain spotted fever. The rash involves the palms or soles in as many as 80% of people.
Rickettsialpox is a mite-borne infectious illness caused by bacteria of the genus Rickettsia (Rickettsia akari). [1] Physician Robert Huebner and self-trained entomologist Charles Pomerantz played major roles in identifying the cause of the disease after an outbreak in 1946 in a New York City apartment complex, documented in "The Alerting of Mr. Pomerantz," an article by medical writer Berton ...
While the cause of the common cold was identified in the 1950s, the disease appears to have been with humanity since its early history. [22] Its symptoms and treatment are described in the Egyptian Ebers papyrus , the oldest existing medical text, written before the 16th century BCE. [ 102 ]
Social and economic conditions also influence how many people take vaccines. Factors such as income, socioeconomic status, ethnicity, age, and education can determine the uptake of vaccines and their impact, especially among vulnerable communities. [60] Social factors like whether one lives with others may affect vaccine uptake.