Characterization of a cluster of COVID-19 cases linked to the Omicron variant, in Mauritania.

Laghdaf SM 1

, El Baraa A 2

, Mohamed Beydjeu A 3

Author information

La Tunisie Medicale, 01 Mar 2022, 100(3):217-221

PMID: 36005913 PMCID: PMC9387648

Free full text in Europe PMC

Abstract

Objective

To describe the epidemiological and genomic profile of COVID-19 during the 4th epidemic wave in Mauritania.

Methods

This is a cross-sectional study in Mauritania, from October 1, 2021, to February 28, 2022. Were included all people in the process of travel, performing an RT-PCR, at the level of the National Research Institute in Public Health and patients who have been sampled for sequencing by teams from the Department of Strategic Information and Epidemiological Surveillance.

Results

Out of 37,574 RT-PCR tests collected on March 3, 2022, during the study period, 1,465 cases were diagnosed positive for COVID-19 (3.9%), with an average age of 39±14,6 years and a sex ratio of 2.08. Of the 112 genomic sequences performed, 75 were of the Omicron variant (66.9%). The average age was 40±15 years, with extremes of 15 to 82 years and a sex ratio of 0.97. The vaccination status was assured in 67.7% of patients and the peak of the Omicron variant was reached during the first week of January 2022.

Conclusion

The Omicron variant was predominant during the 4th wave in Mauritania. As part of its response plan against COVID-19, the installation of new sequencing units inside the country and the strengthening of the training of technicians in the virology laboratory will be essential.

Characterization of a cluster of COVID-19 cases linked to the Omicron variant, in Mauritania.

Détail Article

Mots clés

Auteurs

Sidi Mohamed Laghdaf

Télécharger l'article

Actualités récentes

Liens utiles

Articles récents