Dengue fever is an infectious
tropical disease caused by the
dengue virus. Symptoms include
fever,
headache,
muscle and
joint pains, and a characteristic
skin rash that is
similar to measles. Dengue is transmitted by several species of
mosquito within the Aedesgenus, principally A. aegypti. The virus has four different types; infection with one type usually gives lifelong
immunity to that type, but only short-term immunity to the others. Subsequent infection with a different type increases the risk of severe complications. As there is no
vaccine, prevention is sought by reducing the habitat and the number of mosquitoes and limiting exposure to bites. Treatment of acute dengue is supportive, using either oral or intravenous
rehydration for mild or moderate disease, and
intravenous fluids and
blood transfusion for more severe cases. The
incidence of dengue fever has increased dramatically since the 1960s, with around 50–100 million people infected yearly. Early descriptions of the condition date from 1779, and its viral cause and the transmission were elucidated in the early 20th century. Dengue has become a worldwide problem since the Second World War and is
endemic in more than 110 countries. (
more...)
... that due to the urban setting of the Great Forest Park Balloon Race some balloonists have landed in yards, golf courses, street intersections, and a walled convent garden?
... that simply knowing about and understanding the illusion of transparency might help reduce speech anxiety?
... that the cost of the final 20-kilometre (12 mi) segment of the Croatian A2 motorway was twice that of the other two-thirds of the route?
A female Siberian tiger (Panthera tigris altaica), a
subspecies of
tiger native to
Central Asia, and her cub. The Siberian tiger is the largest of the extant tiger subspecies as well as the largest
felid, attaining 320 kg (710 lb) in an exceptional specimen. Considered an
endangered species, the wild population is down to several hundred individuals and is limited to eastern
Siberia.
This Wikipedia is written in
English. Started in 2001 (2001), it currently contains
3,701,062 articles. Many other Wikipedias are available; some of the largest are listed below.