Is chikungunya virus a Flavivirus?
Chikungunya virus (CHIKV) and Zika virus (ZIKV) are arthropod-borne viruses (arboviruses) transmitted by mosquitoes. Based on the most current taxonomy of viruses, CHIKV and ZIKV belong to the Togaviridae family and the Flaviviridae family, respectively.
What is the pathogen of chikungunya?
Chikungunya is a viral disease transmitted to humans by infected mosquitoes. It is caused by the chikungunya virus (CHIKV). A CHIKV infection causes fever and severe joint pain.
What is the causative organism of dengue?
Dengue is a viral infection transmitted to humans through the bite of infected mosquitoes. The primary vectors that transmit the disease are Aedes aegypti mosquitoes and, to a lesser extent, Ae. albopictus. The virus responsible for causing dengue, is called dengue virus (DENV).
How do I keep mosquitoes out of my wetlands?
Wetland restoration decreases mosquito populations in two ways: by providing proper habitat for the natural enemies of mosquitoes, and by preventing or reduc- ing flooding (in areas that aren’t normally wet and thus support mosquitoes but not their predators).
Which mosquito causes dengue virus?
Dengue viruses are spread to people through the bite of an infected Aedes species (Ae. aegypti or Ae. albopictus) mosquito. Almost half of the world’s population, about 4 billion people, live in areas with a risk of dengue.
When was the dengue virus first discovered?
Discovery of the Dengue Viruses In 1943, Ren Kimura and Susumu Hotta first isolated the dengue virus. These two scientists were studying blood samples of patients taken during the 1943 dengue epidemic in Nagasaki, Japan.
Is Flavivirus DNA or RNA?
The Flaviviridae are a family of positive, single-stranded, enveloped RNA viruses. They are found in arthropods, (primarily ticks and mosquitoes), and can occasionally infect humans. Members of this family belong to a single genus, Flavivirus, and cause widespread morbidity and mortality throughout the world.
How does chikungunya virus work?
Chikungunya virus is primarily transmitted to people through the bite of an infected mosquito, mainly Aedes aegypti and Aedes albopictus. People are the primary host of chikungunya virus during epidemic periods. Mosquitoes become infected when they feed on a person who already has the virus.
Does chikungunya affect the liver?
Chikungunya virus has a wide tissue and cellular tropism and previous reports indicate that it infects the liver [76, 77].
Which microorganism is the cause of malaria?
Malaria Parasites. Malaria parasites are micro-organisms that belong to the genus Plasmodium. There are more than 100 species of Plasmodium, which can infect many animal species such as reptiles, birds, and various mammals. Four species of Plasmodium have long been recognized to infect humans in nature.