The outbreak of Marburg virus disease in Gueckedou district, Guinea started in July 2021, and ended in September.

[7] A team of WHO specialists arrived in Temessadou M'bokét in August–September 2021 for an epidemiological investigation of the case and searched for the Marburg virus reservoir.

He was a farmer living in close contact with nature and wildlife and may therefore have had repeated exposure to an environment or food contaminated with excreta of MARV-infected bats.

Community surveys showed that although he may have harvested wild fruits for personal consumption, there was no suggestion that he had visited caves or been involved in hunting activities for bushmeat, including bats.

[6] Previously, in 2017–2018, Marburg virus was detected in the Egyptian rousette bats (Rousettus aegyptiacus) in the neighboring Sierra Leone.