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Not included in the above table are many waves of deadly diseases brought by Europeans to the Americas and Caribbean. Western Hemisphere populations were ravaged mostly by smallpox, but also typhus, measles, influenza, bubonic plague, cholera, malaria, tuberculosis, mumps, yellow fever, and pertussis. The lack of written records in many places ...
Human infectious diseases may be characterized by their case fatality rate (CFR), the proportion of people diagnosed with a disease who die from it (cf. mortality rate).It should not be confused with the infection fatality rate (IFR), the estimated proportion of people infected by a disease-causing agent, including asymptomatic and undiagnosed infections, who die from the disease.
In August 2021, two months after the re-emergent Ebola epidemic in the Guéckédou prefecture was declared over, a case of the Marburg virus disease was confirmed by health authorities through laboratory analysis. [106] This is the first-ever case of the Marburg virus disease in West Africa. [107] On August 2, the patient succumbed to the ...
Rwanda is battling its first-ever outbreak of the deadly Marburg virus, with 36 cases reported so far and 11 deaths. The World Health Organization said this week the risk of the outbreak is very ...
In March 2014, the World Health Organization (WHO) reported a major Ebola outbreak in Guinea, a western African nation, [1] the disease then rapidly spread to the neighboring countries of Liberia and Sierra Leone with smaller outbreaks occurring in Senegal, Nigeria, and Mali; the resulting West African Ebola virus epidemic is the largest Ebola outbreak (cases and deaths) ever documented.
Of the four disease-causing viruses in the genus Ebolavirus, Ebola virus (or the Zaire Ebola virus) is dangerous and is the virus responsible for the epidemic in Western Africa. [ 236 ] [ 237 ] Since the discovery of the viruses in 1976, Ebola virus disease has been confined to areas in Middle Africa, where it is native.
[34] [35] The first confirmed case in sub-Saharan Africa was announced in Nigeria at the end of February 2020. [36] Within three months, the virus had spread throughout the continent, as Lesotho, the last African sovereign state to have remained free of the virus, reported a case on 13 May 2020.
Joining norovirus on a list nobody would want to be a part of is hepatitis A, which ranked second as the most viral. According to the report, it causes 14 million cases of foodborne illness a year ...