Volume 11, Number 9—September 2005
Research
Malaria Attributable to the HIV-1 Epidemic, Sub-Saharan Africa
Table 1
HIV-1, malaria incidence and death rates. and their interactions*
Parameter | Assumption |
---|---|
Malaria transmission intensity | Index >0 and <0.75 denotes low-intensity transmission and >0.75 denotes high-intensity transmission, except for southern Africa, where index >0.75 denotes unstable transmission (18,19) |
Overall malaria incidence | Middle Africa, high-transmission areas: 1.4 per person per year in children <5 y, 0.59 per person per year at 5–14 y, 0.11 per person per year at >15 y (19) Middle Africa, low-transmission areas: 0.182 per person per year in children <15 y, 0.091 per person per year at >15 y (19) Southern Africa: 0.0294 per person per year as all-age average in areas with (unstable) malaria transmission; divided as twice the rate at >15 y compared to <14 y (19) |
Relative malaria incidence urban/rural | 0.50 (20) |
Malaria deaths | High-transmission areas: 0.8% of incident cases in children <5 y, 0.3% at >5 y; Low-transmission and unstable transmission areas: 0.8% of incident cases in all age groups (21). |
Effect of HIV-1 on incidence of clinical malaria | >5 years in areas with high-intensity malaria transmission, and all age groups in areas with low-intensity or unstable malaria transmission: CD4 >500/μL RR = 1.2 CD4 200–499/μL RR = 3.0 CD4 <200/μL RR = 5.0† <5 years in high-transmission areas: no effect |
Effect of HIV-1 on malaria case fatality rate | All malaria transmission intensities and age groups: CD4 >500/μL RR = 2.0 CD4 200–499/μL RR = 4.0 CD4 <200/μL RR = 10‡ |
Survival after HIV-1 infection | Median 9 years, following a Weibull curve with shape parameter 2.28 (22) |
CD4 decline over the course of HIV-1 infection | Linear from 825/μL at seroconversion to 20/μL at death of AIDS (23–26) |
*RR = relative risk associated with HIV-1 infection; y = years of age.
†From (9,10). Earlier studies did not consistently show these effects, but these were cross-sectional and/or hospital-based (1). Effects of HIV-1 in these studies may have been obscured by a lack of adjustment for prestudy treatment with antimalarial drugs (which might be more common in HIV-1 patients with recurrent fevers [27]) and by their inherent dependence on the relative survival of HIV-infected and HIV-uninfected participants, given the increased case fatality of malaria among HIV-infected patients (6). At the specified CD4-stratum-specific relative risks, the relative risk averaged over all HIV-infected people would be 2.1 in Madagascar and 2.5 in all other countries (see Methods, CD4 distributions among HIV-infected people).
‡At these CD4-stratum-specific relative risks, the relative risk averaged over all HIV-infected people would be 3.4 in Madagascar and 4.1 in all other countries (see Methods, CD4 distributions among HIV-infected people).
References
- World Health Organization. Malaria and HIV/AIDS interactions and implications: conclusions of a technical consultation convened by WHO; 2004 23–25 June. Report no.: WHO/HIV/2004.08. Geneva; 2004.
- Grimwade K, French N, Mbatha DD, Zungu DD, Dedicoat M, Gilks CF. Childhood malaria in a region of unstable transmission and high human immunodeficiency virus prevalence. Pediatr Infect Dis J. 2003;22:1057–63. DOIPubMedGoogle Scholar
- Grimwade K, French N, Mbatha DD, Zungu DD, Dedicoat M, Gilks CF. HIV infection as a cofactor for severe falciparum malaria in adults living in a region of unstable malaria transmission in South Africa. AIDS. 2004;18:547–54. DOIPubMedGoogle Scholar
- Chirenda J, Siziya S, Tshimanga M. Association of HIV infection with the development of severe and complicated malaria cases at a rural hospital in Zimbabwe. Cent Afr J Med. 2000;46:5–9. DOIPubMedGoogle Scholar
- Leaver RJ, Haile Z, Watters DA. HIV and cerebral malaria. Trans R Soc Trop Med Hyg. 1990;84:201. DOIPubMedGoogle Scholar
- Greenberg AE, Nsa W, Ryder RW, Medi M, Nzeza M, Kitadi N, Plasmodium falciparum malaria and perinatally acquired human immunodeficiency virus type 1 infection in Kinshasa, Zaire. A prospective, longitudinal cohort study of 587 children. N Engl J Med. 1991;325:105–9. DOIPubMedGoogle Scholar
- Asamoah-Odei E, Garcia Calleja JM, Boerma JT. HIV prevalence and trends in sub-Saharan Africa: no decline and large subregional differences. Lancet. 2004;364:35–40. DOIPubMedGoogle Scholar
- Korenromp EL, Williams BG, Gouws E, Dye C, Snow RW. Measurement of trends in childhood malaria mortality in Africa: an assessment of progress toward targets based on verbal autopsy. Lancet Infect Dis. 2003;3:349–58. DOIPubMedGoogle Scholar
- Craig MH, Kleinschmidt I, le Sueur D, Sharp BL. Exploring thirty years of malaria case data in KwaZulu-Natal, South Africa, Part II: the impact of non-climatic factors. Trop Med Int Health. 2004;9:1258–66. DOIPubMedGoogle Scholar
- Tsoka JM, Sharp BL, Kleinschmidt I. Malaria mortality in a high-risk area of South Africa. Presented at Third MIM Pan-American malaria conference: Global advances in malaria research: Evidence-based decision making for malaria control policy. Abstract 528. Arusha, Tanzania, November, 2002.
- Sharp B, van Wyk P, Sikasote JB, Banda P, Kleinschmidt I. Malaria control by residual insecticide spraying in Chingola and Chililabombwe, Copperbelt Province, Zambia. Trop Med Int Health. 2002;7:732–6. DOIPubMedGoogle Scholar
- Trape JF. The public health impact of chloroquine resistance in Africa. Am J Trop Med Hyg. 2001;64:12–7.PubMedGoogle Scholar
- Mouchet J, Manguin S, Sircoulon J, Laventure S, Faye O, Onapa AW, Evolution of malaria in Africa for the past 40 years: impact of climatic and human factors. J Am Mosq Control Assoc. 1998;14:121–30.PubMedGoogle Scholar
- Levin A, Brubaker G, Shao JS, Kumby D, O'Brien TR, Goedert JJ, Determination of T-lymphocyte subsets on site in rural Tanzania: results in HIV-1 infected and non-infected individuals. Int J STD AIDS. 1996;7:288–91. DOIPubMedGoogle Scholar
- Tsegaye A, Messele T, Tilahun T, Hailu E, Sahlu T, Doorly R, Immunohematological reference ranges for adult Ethiopians. Clin Diagn Lab Immunol. 1999;6:410–4.PubMedGoogle Scholar
- UNAIDS. Report on the global HIV/AIDS epidemic. Geneva: Joint United Nations Programme on HIV/AIDS (UNAIDS); 2004 June. Report No.: UNAIDS/04.16E.
- Beier JC, Killeen GF, Githure JI. Short report: entomologic inoculation rates and Plasmodium falciparum malaria prevalence in Africa. Am J Trop Med Hyg. 1999;61:109–13.PubMedGoogle Scholar
- United Nations. World population prospects - the 2004 revision population database. New York: United Nations Population Division; 2002.
- Taha TET, Canner JK, Dallabetta GA, Chiphangwi JD, Liomba G, Wangel A-M, Childhood malaria parasitaemia and HIV in Malawi. Trans R Soc Trop Med Hyg. 1994;88:164–5. DOIPubMedGoogle Scholar
- Birku Y, Mekonnen E, Bjorkman A, Wolday D. Delayed clearance of Plasmodium falciparum in patients with human immunodeficiency virus co-infection treated with artemisinin. Ethiop Med J. 2002;40(Suppl.1):17–26.PubMedGoogle Scholar
- Kamya MR, Kigonya CN, McFarland W. HIV infection may adversely affect clinical response to chloroquine therapy for uncomplicated malaria in children. AIDS. 2001;15:1187–8. DOIPubMedGoogle Scholar
- Muller O, Musoke P, Sen G, Moser R. Pediatric HIV-1 disease in a Kampala Hospital. J Trop Pediatr. 1990;36:283–6.PubMedGoogle Scholar
- Niyongabo T, Deloron P, Aubry P, Ndarugirire F, Manirakiza F, Muhirwa G, Prognostic indicators in adult cerebral malaria: a study in Burundi, an area of high prevalence of HIV infection. Acta Trop. 1994;56:299–305. DOIPubMedGoogle Scholar
- Declich S, Clerici M, Okwey R, Ouma J, Ochakachon R, Francesconi P, Investigating the association between HIV and malaria in sub-Saharan Africa. In: XIVth International AIDS conference; 2002 July 7–12; Barcelona, Spain; 2002. Abstract number ThPeC7607.
- Cohen C, Karstaedt A, Govender N, Thomas J, Hlatshwayo D, Dini L, Increase in severe malaria in HIV-positive adults in South Africa. In: XIVth International AIDS conference; 2002 July 7–12; Barcelona, Spain; 2002. Abstract number ThPeC7602.
- Williams BG, Dye C. Antiretroviral drugs for tuberculosis control in the era of HIV/AIDS. Science. 2003;301:1535–7. DOIPubMedGoogle Scholar
- Auvert B, Males S, Puren A, Taljaard D, Carael M, Williams B. Can highly active antiretroviral therapy reduce the spread of HIV? A study in a township of South Africa. J Acquir Immune Defic Syndr. 2004;36:613–21. DOIPubMedGoogle Scholar
- Morgan D, Mahe C, Mayanja B, Whitworth JA. Progression to symptomatic disease in people infected with HIV-1 in rural Uganda: prospective cohort study. BMJ. 2002;324:193–6. DOIPubMedGoogle Scholar
- Mermin J, Lule J, Ekwaru JP, Malamba S, Downing R, Ransom R, Effect of co-trimoxazole prophylaxis on morbidity, mortality, CD4-cell count, and viral load in HIV infection in rural Uganda. Lancet. 2004;364:1428–34. DOIPubMedGoogle Scholar
- Craig MH, Snow RW, le Sueur D. A climate-based distribution model of malaria transmission in sub-Saharan Africa. Parasitol Today. 1999;15:105–11. DOIPubMedGoogle Scholar
- Muller O, Moser R. The clinical and parasitological presentation of Plasmodium falciparum malaria in Uganda is unaffected by HIV-1 infection. Trans R Soc Trop Med Hyg. 1990;84:336–8. DOIPubMedGoogle Scholar
- Seyler C, Anglaret X, Dakoury-Dogbo N, Messou E, Toure S, Danel C, Medium-term survival, morbidity and immunovirological evolution in HIV-infected adults receiving antiretroviral therapy, Abidjan, Cote d'Ivoire. Antivir Ther. 2003;8:385–93.PubMedGoogle Scholar
- World Health Organization. UNAIDS, UNICEF. Joint WHO/UNAIDS/UNICEF statement on use of cotrimoxazole as prophylaxis in HIV exposed and HIV infected children. 2004 Nov 22 [cited 2004 Nov 25]; Available from: http://www.who.int/hiv/en/
- Anglaret X, Chene G, Attia A, Toure S, Lafont S, Combe P, Early chemoprophylaxis with trimethoprim-sulphamethoxazole for HIV-1 infected adults in Abidjan, Cote d'Ivoire: a randomised trial. Lancet. 1999;353:1463–8. DOIPubMedGoogle Scholar
- Chintu C, Bhat GJ, Walker AS, Mulenga V, Sinyinza F, Lishimpi K, Co-trimoxazole as prophylaxis against opportunistic infections in HIV-infected Zambian children (CHAP): a double-blind randomised placebo-controlled trial. Lancet. 2004;364:1865–71. DOIPubMedGoogle Scholar
- Improved methods and assumptions for estimation of the HIV/AIDS epidemic and its impact: Recommendations of the UNAIDS Reference Group on Estimates, Modelling and Projections. AIDS. 2002;16:W1–14.PubMedGoogle Scholar
- Williams BG, Dye C. Antiretroviral drugs for tuberculosis control in the era of HIV/AIDS. Science. 2003;301:1535–7. DOIPubMedGoogle Scholar
- Urassa W, Bakari M, Sandstrom E, Swai A, Pallangyo K, Mbena E, Rate of decline of absolute number and percentage of CD4 T lymphocytes among HIV-1-infected adults in Dar es Salaam, Tanzania. AIDS. 2004;18:433–8. DOIPubMedGoogle Scholar
- Kelly P, Zulu I, Amadi B, Munkanta M, Banda J, Rodrigues LC, Morbidity and nutritional impairment in relation to CD4 count in a Zambian population with high HIV prevalence. Acta Trop. 2002;83:151–8. DOIPubMedGoogle Scholar
- Levin A, Brubaker G, Shao JS, Kumby D, O'Brien TR, Goedert JJ, Determination of T-lymphocyte subsets on site in rural Tanzania: results in HIV-1 infected and non-infected individuals. Int J STD AIDS. 1996;7:288–91. DOIPubMedGoogle Scholar
- Tsegaye A, Messele T, Tilahun T, Hailu E, Sahlu T, Doorly R, Immunohematological reference ranges for adult Ethiopians. Clin Diagn Lab Immunol. 1999;6:410–4.PubMedGoogle Scholar
- Tsegaye A, Messele T, Tilahun T, Hailu E, Sahlu T, Doorly R, Immunohematological reference ranges for adult Ethiopians. Clin Diagn Lab Immunol. 1999;6:410–4.PubMedGoogle Scholar
- Morgan D, Mahe C, Mayanja B, Okongo JM, Lubega R, Whitworth JA. HIV-1 infection in rural Africa: is there a difference in median time to AIDS and survival compared with that in industrialized countries? AIDS. 2002;16:597–603. DOIPubMedGoogle Scholar