Dichlorodiphenyltrichloroethane, commonly known as DDT, is a colorless, tasteless, and almost odorless crystalline chemical compound, an organochloride. Originally developed as an insecticide, it became infamous for its environmental impacts. DDT was first synthesized in 1874 by the Austrian chemist Othmar Zeidler. DDT's insecticidal action was discovered by the Swiss chemist Paul Hermann Müller in 1939. DDT was used in the second half of World War II to limit the spread of the insect-borne diseases malaria and typhus among civilians and troops. Müller was awarded the Nobel Prize in Physiology or Medicine in 1948 "for his discovery of the high efficiency of DDT as a contact poison against several arthropods".
Malaria is a mosquito-borne infectious disease that affects humans and other animals. Malaria causes symptoms that typically include fever, tiredness, vomiting, and headaches. In severe cases, it can cause jaundice, seizures, coma, or death. Symptoms usually begin ten to fifteen days after being bitten by an infected mosquito. If not properly treated, people may have recurrences of the disease months later. In those who have recently survived an infection, reinfection usually causes milder symptoms. This partial resistance disappears over months to years if the person has no continuing exposure to malaria.
The history of Trinidad and Tobago begins with the settlements of the islands by Indigenous First Peoples. Trinidad was visited by Christopher Columbus on his third voyage in 1498,, and claimed in the name of Spain. Trinidad was administered by Spanish hands until 1797, but it was largely settled by French colonists. Tobago changed hands between the British, French, Dutch, and Courlanders, but eventually ended up in British hands following the second Treaty of Paris (1814). In 1889, the two islands were incorporated into a single political entity. Trinidad and Tobago obtained its independence from the British Empire in 1962 and became a republic in 1976.
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.
Tobago is an island and ward within the Republic of Trinidad and Tobago. It is located 35 kilometres (22 mi) northeast of the larger island of Trinidad and about 160 kilometres (99 mi) off the northeastern coast of Venezuela. It also lies to the southeast of Grenada. The official bird of Tobago is the cocrico.
The Columbian exchange, also known as the Columbian interchange, was the widespread transfer of plants, animals, precious metals, commodities, culture, human populations, technology, diseases, and ideas between the New World in the Western Hemisphere, and the Old World (Afro-Eurasia) in the Eastern Hemisphere, in the late 15th and following centuries. It is named after the Italian explorer Christopher Columbus and is related to the European colonization and global trade following his 1492 voyage. Some of the exchanges were purposeful; some were accidental or unintended. Communicable diseases of Old World origin resulted in an 80 to 95 percent reduction in the number of Indigenous peoples of the Americas from the 15th century onwards, most severely in the Caribbean. The cultures of both hemispheres were significantly impacted by the migration of people from the Old World to the New. European colonists and African slaves replaced Indigenous populations across the Americas, to varying degrees. The number of Africans taken to the New World was far greater than the number of Europeans moving to the New World in the first three centuries after Columbus.
The first European contact in 1492 started an influx of communicable diseases into the Caribbean. Diseases originating in the Old World (Afro-Eurasia) came to the New World for the first time, resulting in demographic and sociopolitical changes due to the Columbian Exchange from the late 15th century onwards. The Indigenous peoples of the Americas had little immunity to the predominantly European diseases, resulting in significant loss of life and contributing to their enslavement and exploitation perpetrated by the European colonists. Waves of enslaved Africans were brought to replace the dwindling Indigenous populations, solidifying the position of disease in triangular trade.
Afro-Trinidadians and Tobagonians are people from Trinidad and Tobago who are of West African descent. Social interpretations of race in Trinidad and Tobago are often used to dictate who is of West African descent. Mulatto-Creole, Dougla, Blasian, Zambo, Maroon, Pardo, Quadroon, Octoroon or Hexadecaroon (Quintroon) were all racial terms used to measure the amount of West African ancestry someone possessed in Trinidad and Tobago and throughout North American, Latin American and Caribbean history.
In Geography, the Caribbean Basin is generally defined as the area running from Florida westward along the Gulf coast, then south along the Mexican coast through Central America and then eastward across the northern coast of South America. This region includes the islands of the archipelago of the West Indies. Bermuda is also included within the region even though it is in the west-central Atlantic, due to its common cultural history created by European colonization of the region, and in most of the region by the presence of a significant group of African descent.
Trinidad and Tobago, officially the Republic of Trinidad and Tobago, is the southernmost island country in the Caribbean. Consisting of the main islands Trinidad and Tobago, and numerous much smaller islands, it is situated 130 kilometres south of Grenada and 11 kilometres off the coast of northeastern Venezuela. It shares maritime boundaries with Barbados to the northeast, Grenada to the northwest and Venezuela to the south and west. Trinidad and Tobago is generally considered to be part of the West Indies. The island country's capital is Port of Spain, while its largest and most populous city is San Fernando.
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.
The Caribbean is the second-most affected region in the world in terms of HIV prevalence rates. Based on 2009 data, about 1.0 percent of the adult population is living with the disease, which is higher than any other region except Sub-Saharan Africa. Several factors influence this epidemic, including poverty, gender, sex tourism, and stigma. HIV incidence in the Caribbean declined 49% between 2001 and 2012. Different countries have employed a variety of responses to the disease, with a range of challenges and successes.
Globalization, the flow of information, goods, capital, and people across political and geographic boundaries, allows infectious diseases to rapidly spread around the world, while also allowing the alleviation of factors such as hunger and poverty, which are key determinants of global health. The spread of diseases across wide geographic scales has increased through history. Early diseases that spread from Asia to Europe were bubonic plague, influenza of various types, and similar infectious diseases.
The Trinidad Regional Virus Laboratory (T.R.V.L.) was established in Port of Spain, in 1953 by the Rockefeller Foundation in co-operation with the Government of Trinidad and Tobago. It was originally housed in an old wooden army barracks near the docks in Port of Spain. A large wired-in "animal house" was built out back to house the many wild animals brought in for study.
A malaria vaccine is a vaccine that is used to prevent malaria. The only approved malaria vaccine is RTS,S, known by the brand name Mosquirix. As of April 2022, the vaccine has been given to 1 million children living in areas with moderate-to-high malaria transmission. It requires at least three doses in infants by age 2, with a fourth dose extending the protection for another 1-2 years. The vaccine reduces hospital admissions from severe malaria by around 30%.
The 'Southern Caribbean is a group of islands that neighbor mainland South America in the West Indies. Saint Lucia lies to the north of the region, Barbados in the east, Trinidad and Tobago at its southernmost point, and Aruba at the most westerly section.
Avian malaria is a parasitic disease of birds, caused by parasite species belonging to the genera Plasmodium and Hemoproteus. The disease is transmitted by a dipteran vector including mosquitoes in the case of Plasmodium parasites and biting midges for Hemoproteus. The range of symptoms and effects of the parasite on its bird hosts is very wide, from asymptomatic cases to drastic population declines due to the disease, as is the case of the Hawaiian honeycreepers. The diversity of parasites is large, as it is estimated that there are approximately as many parasites as there are species of hosts. Co-speciation and host switching events have contributed to the broad range of hosts that these parasites can infect, causing avian malaria to be a widespread global disease, found everywhere except Antarctica.
The Caribbean is a region of the Americas that consists of the Caribbean Sea, its islands and the surrounding coasts. The region is southeast of the Gulf of Mexico and the North American mainland, east of Central America, and north of South America.
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 725,000 deaths.
Global climate change has resulted in a wide range of impacts on the spread of infectious diseases. Like other climate change impacts on human health, climate change exacerbates existing inequalities and challenges in managing infectious disease. It also increases the likelihood of certain kinds of new infectious disease challenges. Infectious diseases whose transmission can be impacted by climate change include Dengue fever, Malaria, Tick-borne disease, Leishmaniasis, Ebola. There is no direct evidence that the spread of COVID-19 is worsened or is caused by climate change, although investigations continue.
