Search results
Results from the WOW.Com Content Network
1918–1922 Russia typhus epidemic: Typhus: 2–3 million 1–1.6% of Russian population [14] 1918–1922 Russia: 13 Cocoliztli epidemic of 1576: Cocoliztli 2–2.5 million 50% of Mexican population [12] 1576–1580 Mexico 14 1772–1773 Persian Plague: Bubonic plague 2 million – 1772–1773 Persia: 15 735–737 Japanese smallpox epidemic ...
An epidemic (from Greek ἐπί epi "upon or above" and δῆμος demos "people") is the rapid spread of disease to a large number of hosts in a given population within a short period of time. For example, in meningococcal infections, an attack rate in excess of 15 cases per 100,000 people for two consecutive weeks is considered an epidemic ...
The number of cases varies according to the disease-causing agent, and the size and type of previous and existing exposure to the agent. Outbreaks include many epidemics, which term is normally only for infectious diseases, as well as diseases with an environmental origin, such as a water or foodborne disease. They may affect a region in a ...
For example, smallpox eradication, with the last wild case in 1977, and certification of the eradication of indigenous transmission of 2 of the 3 types of wild poliovirus (type 2 in 2015, after the last reported case in 1999, and type 3 in 2019, after the last reported case in 2012). [28] The herd immunity level will be denoted q.
Epidemic typhus, also known as louse-borne typhus, is a form of typhus so named because the disease often causes epidemics following wars and natural disasters where civil life is disrupted. [ 4 ] [ 5 ] Epidemic typhus is spread to people through contact with infected body lice , in contrast to endemic typhus which is usually transmitted by fleas .
Disease Type Treatment stage [clarification needed] CFR Notes Reference(s) Transmissible spongiform encephalopathy: Prion: No treatment and no cure [1]: 100% [2]: Includes Creutzfeldt–Jakob disease and all its variants, fatal insomnia, kuru, Gerstmann–Sträussler–Scheinker syndrome, Variably protease-sensitive prionopathy and others.
A Marburg virus disease outbreak in Tanzania was first reported on 21 March 2023 by the Ministry of Health of Tanzania. [109] This was the first time that Tanzania had reported an outbreak of the disease. On 2 June 2023, Tanzania declared the outbreak over. [110] There were 9 total infections, resulting in 6 total deaths. [63] [64]
Obesity has been observed throughout human history. Many early depictions of the human form in art and sculpture appear obese. [2] However, it was not until the 20th century that obesity became common — so much so that, in 1997, the World Health Organization (WHO) formally recognized obesity as a global epidemic [3] and estimated that the worldwide prevalence of obesity has nearly tripled ...