What disease does the alphavirus cause?
What disease does the alphavirus cause?
Three Alphaviruses currently cause human disease in the United States: the Eastern equine encephalitis (EEE), Western equine encephalitis (WEE), and Venezuelan equine encephalitis (VEE) viruses. All three are transmitted through mosquitoes and can initially present as a flulike illness.
Which of the following are common clinical symptom of alphavirus infection?
Alphavirus infections are characterized by the triad of fever, arthralgia and rash. These clinical features occur abruptly after an incubation period of 2–10 days. In the early phase, fever, muscle pains, malaise and headache dominate the clinical picture.
How do alphaviruses replicate?
The replication and propagation of viruses is dependent on entry into permissive cells. Viral entry is initiated by attachment of virions to cells, leading to internalization, and uncoating to release genetic material for replication and propagation.
What are the symptoms of flavivirus?
What are the symptoms of Flaviviridae? General symptoms include fever, body aches, headache, and joint pain. Some of these illness may also cause vomiting and diarrhea. The diseases caused by Flaviviridae viruses can be fatal.
Where is alphavirus found?
In most other cases the virus is maintained in nature in mosquitoes, rodents and birds. Terrestrial alphavirus infections are spread by insect vectors such as mosquitoes. Once a human is bitten by the infected mosquito, the virus can gain entry into the bloodstream, causing viremia.
How much time does it take to recover from chikungunya?
Most people recover fully, with symptoms resolving in three to 10 days. For some people, joint pain may continue for months, or even years. Death from complications of chikungunya is very rare, but the virus sometimes causes severe problems, mostly in older adults with other chronic illnesses.
How is Eastern equine encephalitis spread?
Eastern equine encephalitis (EEE) is an extremely rare but serious and often fatal infection that causes encephalitis or inflammation of the brain. It is spread by the bite of a mosquito infected with EEE virus (EEEV). EEEV can also infect a wide range of animals including mammals, birds, reptiles, and amphibians.