Mosquito-Born Disease
Mosquito-borne diseases or mosquito-borne illnesses are diseases caused by bacterial, viruses or parasites transmitted by mosquitoes. Nearly 700 million people get a mosquito borne illness each year resulting in greater than one million deaths. Diseases that are spread to humans by mosquitoes include:
Zika Virus disease is caused by a virus transmitted primarily by Aedes mosquitoes. People with Zika virus disease can have symptoms including mild fever, skin rash, conjunctivitis, muscle and joint pain, malaise or headache. There is scientific consensus that Zika virus is a cause of microcephaly and Guillain-Barré syndrome. Links to other neurological complications are also being investigated. Currently there is no vaccine or medicine for Zika (Source: WHO)
West Nile Virus is mainly transmitted to people through the bites of infected mosquitoes. Mosquitoes become infected when they feed on infected birds, which circulate the virus in their blood for a few days. About 20% of people who become infected with WNV will develop West Nile fever. Symptoms include fever, headache, tiredness, and body aches, nausea, vomiting, occasionally with a skin rash (on the trunk of the body) and swollen lymph glands. It is estimated that approximately 1 in 150 persons infected with the West Nile virus will develop a more severe form of disease. The incubation period is usually 3 to 14 days. (Source: WHO)
Dengue Virus is transmitted by female mosquitoes mainly of the species Aedes aegypti and, to a lesser extent, Ae. albopictus. The global incidence of dengue has grown dramatically in recent decades. About half of the world's population is now at risk. Dengue fever is a severe, flu-like illness that affects infants, young children and adults, but seldom causes death. Dengue should be suspected when a high fever (40°C/104°F) is accompanied by 2 of the following symptoms: severe headache, pain behind the eyes, muscle and joint pains, nausea, vomiting, swollen glands or rash. Symptoms usually last for 2–7 days, after an incubation period of 4–10 days after the bite from an infected mosquito. (Source: WHO)
Malaria is a life-threatening disease caused by parasites that are transmitted to people through the bites of infected female Anopheles mosquitoes.Malaria is an acute febrile illness. In a non-immune individual, symptoms appear 7 days or more (usually 10–15 days) after the infective mosquito bite. The first symptoms – fever, headache, chills and vomiting – may be mild and difficult to recognize as malaria. If not treated within 24 hours, P. falciparum malaria can progress to severe illness, often leading to death. (Souce: WHO)
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