The first epidemiological and virological influenza surveillance in the Republic of Guinea revealed the predominance of influenza A/H3N2 and B Victoria viruses.

Autor:	Keita MB; Institut National de Santé Publique (INSP), PO Box 6623, Conakry, Guinea.; Université Gamal Abdel Nasser Conakry, Guinea., Pierre F; Institut National de Santé Publique (INSP), PO Box 6623, Conakry, Guinea., Ndjomou J; MRIGlobal, 65 W. Watkins Rd, Gaithersburg, MD 20878, USA., Traoré B; Institut National de Santé Publique (INSP), PO Box 6623, Conakry, Guinea., Tohonamou P; Institut National de Santé Publique (INSP), PO Box 6623, Conakry, Guinea., Soumaré M; Institut National de Santé Publique (INSP), PO Box 6623, Conakry, Guinea., Mamadi S; Institut National de Santé Publique (INSP), PO Box 6623, Conakry, Guinea., Keita MA; Institut National de Santé Publique (INSP), PO Box 6623, Conakry, Guinea., Bile CE; US Centers for Disease Control and Prevention, Atlanta, GA, USA., Pallawo RB; World Health Organization, Conakry, Guinea., Rajatonirina SC; World Health Organization, Brazzaville, Congo., Barry A; World Health Organization, Conakry, Guinea., Koivogui L; Institut National de Santé Publique (INSP), PO Box 6623, Conakry, Guinea., Camara R; Institut National de Santé Publique (INSP), PO Box 6623, Conakry, Guinea., Touré A; Institut National de Santé Publique (INSP), PO Box 6623, Conakry, Guinea.; Université Gamal Abdel Nasser Conakry, Guinea.
Jazyk:	angličtina
Zdroj:	Epidemiology and infection [Epidemiol Infect] 2021 Sep 28; Vol. 149, pp. e223. Date of Electronic Publication: 2021 Sep 28.
DOI:	10.1017/S0950268821001965
Abstrakt:	Little is known about respiratory viruses infection in Guinea. Influenza surveillance has not been implemented in Guinea mainly because of the paucity of laboratory infrastructure and capacity. This paper presents the first influenza surveillance data in Guinea.Swabs were obtained from August 2018 through December 2019 at influenza sentinel sites and transported to the Institut National de Santé Publique for testing. Ribonucleic acid was extracted and tested for the presence of influenza A and B by real-time reverse transcription-polymerase chain reaction (RT-PCR). Positive samples were further characterised to determine the subtypes and lineages of influenza viruses.A total of 862 swabs were collected and tested. Twenty-three per cent of samples tested positive for influenza A and B viruses. Characterisation of positive specimens identified influenza A/H1N1pmd09 (2.5%), influenza A/H3N2 (57.3%), influenza B/Victoria lineage (36.7%) and 7 (3.5%) influenza B with undetermined lineage. Influenza B virus activity clustered in August through November while influenza A/H3N2 displayed two clusters of activities that appeared in May through August and November through December.For the first time in Guinea, the epidemiology, diversity and period of circulation of influenza viruses were studied. The results indicate the predominance and the periods of activities of influenza B Victoria lineage and influenza A/H3N2 which are important information for preventive strategies. It is warranted to extend the influenza surveillance to other parts of Guinea to better understand the epidemiology of the viruses and monitor the emergence of influenza strains with pandemic potential.
Databáze:	MEDLINE
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