Prevalence and Incidence of Malaria


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About prevalence and incidence statistics: The term 'prevalence' of Malaria usually refers to the estimated population of people who are managing Malaria at any given time. The term 'incidence' of Malaria refers to the annual diagnosis rate, or the number of new cases of Malaria diagnosed each year. Hence, these two statistics types can differ: a short-lived disease like flu can have high annual incidence but low prevalence, but a life-long disease like diabetes has a low annual incidence but high prevalence. For more information see about prevalence and incidence statistics.

Incidence (annual) of Malaria: 1,800 cases annually (1997); 1,666 annual cases notified in USA 1999 (MMWR 1999)
Incidence Rate: approx 1 in 151,111 or 0.00% or 1,800 people in USA [about data]
Worldwide incidence of Malaria:300 to 500 million people develop malaria
Prevalance of Malaria: In the United States, approximately 1,000 cases are reported annually, which researchers estimate represent only 25 to 50 percent of actual cases.1
Worldwide prevalence of Malaria:Each year, 300 to 500 million people develop malaria and 1.5 to 3 million–mostly children–die, according to the World Health Organization (WHO).2

Prevelance of Malaria discussion: Although the disease was eradicated in the United States in the 1940s, about 1,000-1,400 cases of malaria are reported to CDC each year; almost all acquired during international travel. Over 75% of these cases are associated with failure to use recommended chemoprophylaxis. 3

Each year in the United States, several cases (< 10) of malaria are acquired stateside, by congenital transmission, local mosquito-borne transmission, or by blood transfusion or organ transplantation. On average, 2-3 cases of transmission occur by blood transfusion annually. 3

Incidence statistics about Malaria: The following statistics relate to the incidence of Malaria:

  • 1.39 per 100,000 in Canada 20004
  • 2.4 new cases per 100,000 population for malaria notified in Australia 2002 (Yohannes K, Roche P, Blumer C et al. 2004, Australia’s Health 2004, AIHW)
  • 466 new cases of malaria was notified in Australia 2002 (Yohannes K, Roche P, Blumer C et al. 2004, Australia’s Health 2004, AIHW)
  • Malaria incidence statistics for various countries:
    • 125 registered cases in Argentina 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 928 registered cases in Belize 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 14,276 registered cases in Bolivia 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 349,873 registered cases in Brazil 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 740 registered cases in Canada 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 5 registered cases in Chile 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 195,719 registered cases in Colombia 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 1,021 registered cases in Costa Rica 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 29 registered cases in Cuba 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 1,296 registered cases in the Dominican Republic 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 86,757 registered cases in Ecuador 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 117 registered cases in El Salvador 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 12 registered cases in Guadeloupe 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 35,540 registered cases in Guatemala 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 21,895 registered cases in Guyana 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 17,223 registered cases in Honduras 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 7 registered cases in Jamaica 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 11 registered cases in Martinique 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 4,289 registered cases in Mexico 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 7,466 registered cases in Nicaragua 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 2,244 registered cases in Panama 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 2,778 registered cases in Paraguay 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 1 registered case in Puerto Rico 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 2 registered cases in Saint Lucia 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 13,091 registered cases in Suriname 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 8 registered cases in Trinidad and Tobago (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 446 registered cases in the US 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 24 registered cases in Uruguay 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)
    • 29,491 registered cases in Venezuela 2002 (Regional Core Health Data Initiative, Pan American Health Organisation, 2003)


Footnotes:
1. excerpt from Microbes in Sickness and in Health - Publications, National Institute of Allergy and Infectious Diseases: NIAID
2. excerpt from Malaria, NIAID Fact Sheet: NIAID
3. excerpt from Facts About Transfusion-Transmitted Malaria: CDC-OC
4. Notifiable Diseases Online, PPHB, Canada, 2000

Last revision: June 2, 2003

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