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| Name | Yellow Fever, Causes, Signs and Symptoms, Diagnosis and Treatment. |
| Video Uploader | Video From Medical Centric |
| Upload Date | This Video Uploaded At 28-05-2021 14:30:13 |
| Video Discription | . Chapters 0:00 Introduction 1:02 Causes of yellow fever 1:37 Symptoms of yellow fever 2:37 Diagnosis of yellow fever 3:32 Treatment of yellow fever Yellow fever is a viral disease of typically short duration.[3] In most cases, symptoms include fever, chills, loss of appetite, nausea, muscle pains – particularly in the back – and headaches.[3] Symptoms typically improve within five days.[3] In about 15% of people, within a day of improving the fever comes back, abdominal pain occurs, and liver damage begins causing yellow skin.[3][6] If this occurs, the risk of bleeding and kidney problems is increased.[3] The disease is caused by yellow fever virus and is spread by the bite of an infected mosquito.[3] It infects only humans, other primates, and several types of mosquitoes.[3] In cities, it is spread primarily by Aedes aegypti, a type of mosquito found throughout the tropics and subtropics.[3] The virus is an RNA virus of the genus Flavivirus.[7] The disease may be difficult to tell apart from other illnesses, especially in the early stages.[3] To confirm a suspected case, blood-sample testing with polymerase chain reaction is required.[4] A safe and effective vaccine against yellow fever exists, and some countries require vaccinations for travelers.[3] Other efforts to prevent infection include reducing the population of the transmitting mosquitoes.[3] In areas where yellow fever is common, early diagnosis of cases and immunization of large parts of the population are important to prevent outbreaks.[3] Once a person is infected, management is symptomatic; no specific measures are effective against the virus.[3] Death occurs in up to half of those who get severe disease.[3][8] In 2013, yellow fever resulted in about 127,000 severe infections and 45,000 deaths worldwide,[3] with nearly 90 percent of these occurring in Africa.[4] Nearly a billion people live in an area of the world where the disease is common.[3] It is common in tropical areas of the continents of South America and Africa, but not in Asia.[3][9] Since the 1980s, the number of cases of yellow fever has been increasing.[3][10] This is believed to be due to fewer people being immune, more people living in cities, people moving frequently, and changing climate increasing the habitat for mosquitoes.[3] The disease originated in Africa and spread to South America in the 17th century with the Spanish and Portuguese importation of enslaved Africans from sub-Saharan Africa.[1] Since the 17th century, several major outbreaks of the disease have occurred in the Americas, Africa, and Europe.[1] In the 18th and 19th centuries, yellow fever was considered one of the most dangerous infectious diseases; numerous epidemics swept through major cities of the US and in other parts of the world.[1] cNIm3LC-A7s |
| Category | People & Blogs |
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