Abstract
Background Imported cases of Plasmodium vivax malaria from western Africa are reported annually in the Russian Federation. Infected native African people moving from western Africa for different purposes (students, businessmen, specialists, etc.) or Russian citizens (tourists, diplomats, businessmen, etc.) incubate the pathogen until reaching their Russian destination. Methods All imported and other confirmed malaria cases and the associated Plasmodium species recorded over the past twenty years throughout the Russian Federation were inventoried. These data were included in the national register. The data of imported malaria cases were analysed according to the species of Plasmodium, case origin, dates of importation, and patient nationality. Results A total of 267 P. vivax-infected patients who contracted the disease in western Africa were diagnosed in the Russian Federation from 1984 to 2017. Among them, 3 cases had mixed infections (2 with P. vivax + P. falciparum and 1 P. vivax + P. ovale). Conclusion. Our data reveal an existing risk of contracting P. vivax infections in towns of West sub-Saharan Africa despite the absence of local P. vivax infection records.
Highlights
Imported cases of Plasmodium vivax malaria from western Africa are reported annually in the Russian Federation
We present data regarding the importation of P. vivax malaria from West sub-Saharan Africa to the Russian Federation (1994-2017) and retrospective data (1984-1992) of the USSR
159 Russian citizens and foreigners were infected in 10 western African countries, with the majority infected in Nigeria (Table 1), and 160 patients were infected in eastern and Central Africa
Summary
Imported cases of Plasmodium vivax malaria from western Africa are reported annually in the Russian Federation. All imported and other confirmed malaria cases and the associated Plasmodium species recorded over the past twenty years throughout the Russian Federation were inventoried. These data were included in the national register. P. ovale is distributed throughout sub-Saharan Africa and South-East Asia, and in the western Pacific. It is responsible for 1-5% of all malaria cases in West Africa [2]. The Duffy antigen is not abolished from the membranes of other cells
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