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Outbreaks of chikungunya, on average, have low mortality rates. [2] As it is generally a nonfatal disease, prevalence rates during most outbreaks are higher than incidence rates. [6] Recently, it was discovered that approximately 39% of the worldwide population resides in environments where the chikungunya virus is endemic. [7]
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.
The mortality rate of chikungunya is slightly less than 1 in 1000. [53] Those over the age of 65, neonates, and those with underlying chronic medical problems are most likely to have severe complications. [ 27 ]
The virus was first isolated in 1953, and likely first arose during the 1700s. [5] [6] Chikungunya is characterized by a sudden high fever and intense joint pain, between four and seven days after infection. [4] [7] It can also cause headaches, muscle pain, fatigue, and rashes. [8] Most infected patients recover within 10 days, and deaths are rare.
Influenza A virus subtype H1N1: Lab confirmed deaths: 18,449 (reported to the WHO) [264] Estimated death toll: 284,000 (possible range 151,700–575,400) [265] 2010s Haiti cholera outbreak: 2010–2019 Haiti: Cholera (strain serogroup O1, serotype Ogawa) 10,075 [266] 2010–2014 Democratic Republic of the Congo measles outbreak 2010–2014
In 2016, the WHO recorded 56.7 million deaths [3] with the leading cause of death as cardiovascular disease causing more than 17 million deaths (about 31% of the total) as shown in the chart to the side. In 2021, there were approx. 68 million deaths worldwide, as per WHO report.
Crude mortality rate refers to the number of deaths over a given period divided by the person-years lived by the population over that period. It is usually expressed in units of deaths per 1,000 individuals per year. The list is based on CIA World Factbook 2023 estimates, unless indicated otherwise.
The fertility rate was approximately 3.7 per woman in Honduras in 2009. [1] The under-five mortality rate is at 40 per 1,000 live births. [1] The health expenditure was US$197 per person in 2004. There are about 57 physicians per 100,000 people. [1] Life expectancy at birth was 78 for females in 2016 and for males 73. [2]