Zika mosquito may transmit dengue, chikungunya with one bite: Study
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Aedes aegypti, the primary mosquito that carries Zika virus, may also transmit chikungunya and dengue viruses with one bite, a new study has found.
The first report of chikungunya and dengue virus co-infection occurred in 1967
More recently, co-infections of Zika and dengue viruses, Zika and chikungunya, and all three viruses have been reported during various outbreaks, including the recent outbreak of Zika virus in North and South America.
Zika virus (ZIKV) is a member of the virus family Flaviviridae
It is spread by daytime-active Aedes mosquitoes, such as A. aegypti and A. albopictus
Its name comes from the Zika Forest of Uganda, where the virus was first isolated in 1947
Zika virus is related to the dengue, yellow fever, Japanese encephalitis, and West Nile viruses.
Since the 1950s, it has been known to occur within a narrow equatorial belt from Africa to Asia.
From 2007 to 2016, the virus spread eastward, across the Pacific Ocean to the Americas, leading to the 2015–16 Zika virus epidemic.
The infection, known as Zika fever or Zika virus disease, often causes no or only mild symptoms, similar to a very mild form of dengue fever.
While there is no specific treatment, paracetamol (acetaminophen) and rest may help with the symptoms.
Zika can spread from a pregnant woman to her baby. This can result in microcephaly, severe brain malformations, and other birth defects
Zika infections in adults may result rarely in Guillain–Barré syndrome
In January 2016, the United States Centers for Disease Control and Prevention (CDC) issued travel guidance on affected countries, including the use of enhanced precautions, and guidelines for pregnant women including considering postponing travel.
Other governments or health agencies also issued similar travel warnings, while Colombia, the Dominican Republic, Puerto Rico, Ecuador, El Salvador, and Jamaica advised women to postpone getting pregnant until more is known about the risks.
Dengue fever is a mosquito-borne tropical disease caused by the dengue virus.
High fever, headache, vomiting, muscle and joint pains, and a characteristic skin rash.
In a small proportion of cases, the disease develops into the life-threatening dengue hemorrhagic fever, resulting in bleeding, low levels of blood platelets and blood plasma leakage, or into dengue shock syndrome, where dangerously low blood pressure occurs
Dengue is spread by several species of mosquito of the Aedes type, principally A. aegypti The
Dengue has become a global problem since the Second World War and is common in more than 110 countries.
It is classified as a neglected tropical disease.
About chikungunya :
Chikungunya is an infection caused by the chikungunya virus (CHIKV)
fever and joint pain ,headache, muscle pain, joint swelling, and a rash.
The virus is spread between people by two types of mosquitos: Aedes albopictus and Aedes aegypti.
They mainly bite during the day.
The virus may circulate within a number of animals including birds and rodents.