Factors determining the spread of malaria on the African continent (case study: the Republic of Guinea)

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Abstract

Objective. Analysis of the malaria epidemic situation in the Republic of Guinea and identification of the main factors determining its spread in North-West Africa.

Materials and Methods: Data from the National Agency for Health Safety the Republic of Guinea (Agence Nationale de Sécurité Sanitaire) and meteorological observations in regions of Guinea with different natural and climatic conditions were analyzed.

Results. The Republic of Guinea is located in the subequatorial climate zone, and malaria vectors — Anopheles gambiae complex are widespread within its territory. In the forested region of Guinea, the amount of warmth is sufficient to complete plasmodia sporogony within an average of 14 days. The year-round incidence rate in the analyzed territories is 24.3 per 1,000 inhabitants, which corresponds to 39.9% of the average annual level. The epidemiological year is characterized by a seasonal increase in incidence, which lasts 4–6 months, from June to November or December. The maximum average monthly rates are recorded in August.

Conclusion. Malaria foci are characterized by a diversity of parasitic systems in different natural zones and the widespread distribution of Pl. falciparum. Based on physical and geographical conditions, the republic’s territory can be divided into four climatic and natural regions, differing in their degree of malariogenicity.

About the authors

Roman V. Gudkov

S.M. Kirov Military Medical Academy

Author for correspondence.
Email: gudkoff@mail.ru
ORCID iD: 0000-0001-5498-0479

Cаnd. Med. Sci., Associate Professor, Department of Infectious Diseases (with a Course in Parasitology and Tropical Diseases)

Russian Federation, St. Petersburg

Alexey I. Solovyov

S.M. Kirov Military Medical Academy

Email: solopiter@gmail.com
ORCID iD: 0000-0002-3731-1756

МD, Associate Professor, Head, Academician E.N. Pavlovsky Department of Biology

Russian Federation, St. Petersburg

Konstantin V. Zhdanov

Federal Research and Clinical Center for Infectious Diseases, Federal Medical and Biological Agency

Email: zhdanovkv.vma@gmail.com
ORCID iD: 0000-0002-3679-1874

Corresponding Member of the Russian Academy of Sciences, MD, Professor, Honored Scientist of the Russian Federation, Director

Russian Federation, Saint Petersburg

Konstantin V. Kozlov

S.M. Kirov Military Medical Academy

Email: kosttiak@mail.ru

МD, Full Professor, Head of the Department of Infectious Diseases (with a course in medical parasitology and tropical diseases

Russian Federation, St. Petersburg

Aleksandr N. Uskov

Federal Research and Clinical Center for Infectious Diseases, Federal Medical and Biological Agency

Email: aouskov@gmail.com
ORCID iD: 0000-0003-3185-516X

д.м.н., доцент, начальник отдела организации оказания медицинской помощи взрослым

Russian Federation, Saint Petersburg

Luong Thi Mo

Joint Russian-Vietnamese Tropical Research and Technology Center

Email: luongmo@vrtc.org.vn
ORCID iD: 0000-0002-6035-5933

Southern Branch

Viet Nam, Ho Chi Minh City

Elena V. Kolomoyets

Medical Service, Compagnie des bauxites de Kindia RUSAL

Email: Elena.Kolomoets@rusal.com

Head of Medical Services

Guinea, Conakry

Polina A. Solovyeva

S.M. Kirov Military Medical Academy

Email: solopiterpolina@gmail.com
ORCID iD: 0009-0000-9753-8322
Russian Federation, St. Petersburg

References

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  6. Vezenegho S.B., Brooke B.D., Hunt R.H., Coetzee M., Koekemoer L.L. Malaria vector composition and insecticide susceptibility status in Guinea Conakry, West Africa. Med. Vet. Entomol. 2009; 23(4): 326–334. doi: 10.1111/j.1365-2915.2009.00840.x

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