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Guinea - Lassa fever outbreaks 2022

WEEKLY BULLETIN ON OUTBREAKS
AND OTHER EMERGENCIES

Week 33: 8 - 14 August 2022
Data as reported by: 17:00; 14 August 2022

...
All events currently being monitored by WHO AFRO
...

Guinea Lassa fever Ungraded

Date notified to WCO 10-Aug-22
Start of reporting period 10-Aug-22
End of reporting period 13-Aug-22

Total cases 12
Cases Confirmed 6
Deaths 1
CFR 8,30%


As part of routine surveillance, the Gbessia clinic reported on 8 September 2022 of a situation of four (4) grouped cases working in the same clinic with similar symptoms of fever and vomiting. The epidemiological investigation conducted by the Matoto health district team for three of the four cases revealed that the patients presented with fever, general body aches, headache, nausea, vomiting, and chest pain accompanied by anorexia. Blood samples were taken from which the PCR was carried out at the Laboratory of Viral Hemorrhagic Fevers of Guinea (LFHVG) to test for various diseases of which resulted in two positive cases for Lassa fever. As of 12 August 2022, a total of 6 confirmed cases of Lassa fever and 1 probable case were reported in Conakry and Kindia. A total of 63 contacts were listed in greater Conakry and 21 contacts were identified in Kouroussa.

https://apps.who.int/iris/bitstream/handle/10665/361771/OEW33-0814082022.pdf
 
WEEKLY BULLETIN ON OUTBREAKS
AND OTHER EMERGENCIES

Week 39: 19 - 25 September 2022
Data as reported by: 17:00; 25 September 2022

...
All events currently being monitored by WHO AFRO
...

Guinea Lassa fever Ungraded

Date notified to WCO 10-Aug-22
Start of reporting period 10-Aug-22
End of reporting period 26-Sep-22

Total cases 19
Cases Confirmed 7
Deaths 3
CFR 15.8%



As part of routine surveillance, the Gbessia clinic reported on 8 September 2022 that seven (7) grouped cases were working in the same clinic with similar symptoms of fever and vomiting. The epidemiological investigation revealed that the patients presented with fever, general body aches, headache, nausea, vomiting, and chest pain accompanied by anorexia. Blood samples were taken from which the PCR was carried out at the Laboratory of Viral Hemorrhagic Fevers of Guinea (LFHVG) to test for various diseases, which resulted in two positive cases for Lassa fever. As of 26 September 2022, eighteen confirmed, one probable, and two deaths cases of Lassa fever were reported in Conakry and Kindia. On 20 September 2022, a new confirmed case of Lassa Fever not linked epidemiologically to cases in Conakry and Kindia was notied in by the prefectoral health Directorate of Nzerekore. The epidemiological investigation is ongoing to identify the source of its contamination.

https://extranet.who.int/iris/restricted/bitstream/handle/10665/363303/OEW39-1925092022.pdf
 
WEEKLY BULLETIN ON OUTBREAKS
AND OTHER EMERGENCIES

Week 40: 26 September to 2 October 2022
Data as reported by: 17:00; 2 October 2022

...
All events currently being monitored by WHO AFRO
...
Guinea Lassa fever Ungraded

Date notified to WCO 20-Sep-22
Start of reporting period 20-Sep-22
End of reporting period 29-Sep-22

Total cases 1
Cases Confirmed 1
Deaths 1
CFR 100.0%


As part of routine surveillance, the Prefectural Health Directorate (DPS) of N'zerékoré was alerted by the Regional Hospital Directorate on 20 September 2022 of a positive case of hemorrhagic fever from the Mohomou health area in the urban commune. This is a male patient, 45 years old, a logistician by profession. The deceased lived in the Gbangana district and shared the same household with only his wife. An investigation is ongoing to identify the source of contamination.

https://apps.who.int/iris/bitstream/handle/10665/363400/OEW40-260902102022.pdf
 
WEEKLY BULLETIN ON OUTBREAKS
AND OTHER EMERGENCIES

Week 50: 5 - 11 December 2022
Data as reported by: 17:00; 11 December 2022

...

All events currently being monitored by WHO AFRO
...
Guinea Lassa Fever Ungraded

Date notified to WCO 10-Dec-22
Start of reporting period 8-Dec-2022
End of reporting period 12-Dec-2022

Total cases 1
Cases Confirmed 1
Deaths 0
CFR 0.0%


One confirmed case of Lassa Fever was notified on 8 December 2022 in the Health District of Gueckedou. It is a female patient greater than 60 years old. A total of 27 contacts were identified and are being followed. Public health response activities are ongoing, including the in-depth epidemiological investigation to determine the source of infection

https://apps.who.int/iris/bitstream/handle/10665/365336/OEW50-0511122022.pdf
 
WEEKLY BULLETIN ON OUTBREAKS
AND OTHER EMERGENCIES

Week 2: 2 to 8 January 2023
Data as reported by: 17:00; 8 January 2023

...
All events currently being monitored by WHO AFRO
...

Guinea Lassa Fever Ungraded

Date notified to WCO 10-Dec-22
Start of reporting period 8-Dec-22
End of reporting period 4-Jan-23

Total cases 1
Cases Confirmed 1
Deaths 0
CFR 0.0%


One confirmed case of Lassa Fever was notified on 8 December 2022 in the Health District of Gueckedou. It is a female patient greater than 60 years old. A total of 27 contacts were identified and are being followed. Public health response activities are ongoing, including the in-depth epidemiological investigation to determine the source of infection. Since the notification of the first case on 8 December, no new case of confirmed Lassa fever was reported in the country, and the confirmed case was released from the hospital on 29 December 2022. The countdown to declare the end of this outbreak has started.

https://apps.who.int/iris/bitstream/handle/10665/365578/OEW02-0208012023.pdf?sequence=1&isAllowed=y
 
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