Yellow fever is a viral disease of typically short duration. In most cases, symptoms include fever, chills, loss of appetite, nausea, muscle pains particularly in the back, and headaches. Symptoms typically improve within five days. In about 15% of people, within a day of improving the fever comes back, abdominal pain occurs, and liver damage begins causing yellow skin. If this occurs, the risk of bleeding and kidney problems is increased.
Dengue fever is a mosquito-borne tropical disease caused by the dengue virus. Symptoms typically begin three to fourteen days after infection. These may include a high fever, headache, vomiting, muscle and joint pains, and a characteristic skin rash. Recovery generally takes two to seven days. In a small proportion of cases, the disease develops into severe dengue, also known as 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.
Arbovirus is an informal name used to refer to any viruses that are transmitted by arthropod vectors. The word arbovirus is an acronym. The word tibovirus is sometimes used to more specifically describe viruses transmitted by ticks, a superorder within the arthropods. Arboviruses can affect both animals and plants. In humans, symptoms of arbovirus infection generally occur 3–15 days after exposure to the virus and last three or four days. The most common clinical features of infection are fever, headache, and malaise, but encephalitis and viral hemorrhagic fever may also occur.
Max Theiler was a South African-American virologist and physician. He was awarded the Nobel Prize in Physiology or Medicine in 1951 for developing a vaccine against yellow fever in 1937, becoming the first African-born Nobel laureate.
The Nariva Swamp is the largest freshwater wetland in Trinidad and Tobago and has been designated a Wetland of International Importance under the Ramsar Convention. The swamp is located on the east coast of Trinidad, immediately inland from the Manzanilla Bay through Biche and covers over 60 square kilometres (23 mi2). The Nariva Swamp is extremely biodiverse. It is home to 45 mammal species, 39 reptile species, 33 fish species, 204 bird species, 19 frog species, 213 insect species and 15 mollusc species. All this contained in just 60 square kilometers.
Australian bat lyssavirus (ABLV), initially named Pteropid lyssavirus (PLV), is a zoonotic virus closely related to the rabies virus. It was first identified in a 5-month-old juvenile black flying fox collected near Ballina in northern New South Wales, Australia, in January 1995 during a national surveillance program for the recently identified Hendra virus. ABLV is the seventh member of the genus Lyssavirus and the only Lyssavirus member present in Australia.
Oropouche fever is a tropical viral infection transmitted by biting midges and mosquitoes from the blood of sloths to humans. This disease is named after the region where it was first discovered and isolated at the Trinidad Regional Virus Laboratory in 1955 by the Oropouche River in Trinidad and Tobago. Oropouche fever is caused by a specific arbovirus, the Oropouche virus (OROV), of the Bunyaviridae family.
Oropouche orthobunyavirus (OROV) is one of the most common orthobunyaviruses. When OROV infects humans, it causes a rapid fever illness called Oropouche fever. OROV was originally reported in Trinidad and Tobago in 1955 from the blood sample of a fever patient and from a pool of Coquillettidia venezuelensis mosquitoes. In 1960, OROV was isolated from a sloth and a pool of Ochlerotatus (Ochlerotatus) serratus mosquitoes in Brazil. The virus is considered a public health threat in tropical and subtropical areas of Central and South America, with over half million infected people as of 2005. OROV is considered to be an arbovirus due to the method of transmission by the mosquitoes Aedes serratus and Culex quinquefasciatus among sloths, marsupials, primates, and birds.
Wilbur George Downs, was a naturalist, virologist and clinical professor of epidemiology and public health at the Yale School of Medicine and the Yale School of Public Health.
Greenhall's dog-faced bat is a South American bat species of the family Molossidae. It is found in Colombia, Peru, Ecuador, Venezuela, the Guianas, northeastern Brazil and Trinidad.
The National Institute of Virology, Pune is an Indian virology research institute, and one of the translational science cells part of Indian Council of Medical Research (ICMR). It was previously known as 'Virus Research Center' and was founded in collaboration with the Rockefeller Foundation. It has been designated as a WHO H5 reference laboratory for SE Asia region.
Rabies is a viral zoonotic neuroinvasive disease which causes inflammation in the brain and is usually fatal. Rabies, caused by the rabies virus, primarily infects mammals. In the laboratory it has been found that birds can be infected, as well as cell cultures from birds, reptiles and insects. Animals with rabies suffer deterioration of the brain and tend to behave bizarrely and often aggressively, increasing the chances that they will bite another animal or a person and transmit the disease. Most cases of humans contracting the disease from infected animals are in developing nations. In 2010, an estimated 26,000 people died from rabies, down from 54,000 in 1990.
Mosquito-borne diseases or mosquito-borne illnesses are diseases caused by bacteria, viruses or parasites transmitted by mosquitoes. Nearly 700 million people get a mosquito-borne illness each year resulting in over one million deaths.
Haemagogus is a genus of mosquitoes in the dipteran family Culicidae. They mainly occur in Central America and northern South America, although some species inhabit forested areas of Brazil, and range as far as northern Argentina. In the Rio Grande Do Sul area of Brazil, one species, H. leucocelaenus, has been found carrying yellow fever virus. Several species have a distinct metallic sheen.
Joseph Lennox Donation Pawan MBE was a Trinidadian bacteriologist who was the first person to show that rabies could be spread by vampire bats to other animals and humans.
Robert Ellis Shope was an American virologist, epidemiologist and public health expert, particularly known for his work on arthropod-borne viruses and emerging infectious diseases. He discovered more novel viruses than any person previously, including members of the Arenavirus, Hantavirus, Lyssavirus and Orbivirus genera of RNA viruses. He researched significant human diseases, including dengue, Lassa fever, Rift Valley fever, yellow fever, viral hemorrhagic fevers and Lyme disease. He had an encyclopedic knowledge of viruses, and curated a global reference collection of over 5,000 viral strains. He was the lead author of a groundbreaking report on the threat posed by emerging infectious diseases, and also advised on climate change and bioterrorism.
John ("Jack") Payne Woodall (1935–2016) was a British/American entomologist and virologist who made significant contributions to the study of arboviruses in South America, the Caribbean and Africa. He did research on the causative agents of dengue fever, Crimean–Congo hemorrhagic fever, o'nyong'nyong fever, yellow fever, Zika fever, and others. He served as a staff member of the Rockefeller Foundation, and director of the Foundation's laboratory in Brazil, as a research fellow at the Yale Arbovirus Research Unit, was head of the Arbovirus Laboratory for the New York State Health Department, and worked for the Centers for Disease Control. Woodall spent 13 years at the World Health Organization developing and evaluating health programs. After retirement in 2007, he continued as a consultant and professor at the Institute of Medical Biochemistry in Rio de Janeiro, Brazil, where he had worked since 1998. In 1994, he cofounded the Program for Monitoring Emerging Diseases (ProMED-mail). Woodall's emails concluded with a quote from the Calvin and Hobbes cartoon, "God put me on this earth to accomplish a certain number of things. Right now I'm so far behind I will never die."
A notifiable disease is one which the law requires to be reported to government authorities.
Jordi Casals i Ariet was a Catalan physician and epidemiologist.
Scott Halstead is an American physician-scientist, virologist and epidemiologist known for his work in the fields of tropical medicine and vaccine development. He is considered one of the world’s foremost authorities on viruses transmitted by mosquitoes, including Dengue, Japanese encephalitis, chikungunya and Zika. He was one of the first researchers to identify the phenomenon known as antibody-dependent enhancement (ADE), where the antibodies generated from a first dengue infection can sometimes worsen the symptoms from a second infection.
