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Ebola Situation Report - 16 December 2015
No confirmed cases of Ebola virus disease (EVD) were reported in the week to 13 December. All contacts associated with the cluster of 3 confirmed cases of EVD reported from Liberia in the week to 22 November have now completed 21-day follow-up. The first-reported case in the cluster, a 15-year-old boy, died on 23 November. Two subsequent cases, the boy?s father and younger brother, tested negative twice for Ebola virus on 3 December and were discharged. As of 11 December, 210 eligible recipients associated with the cluster had received the rVSV-ZEBOV Ebola vaccine as part of the Partnership for Research on Ebola Vaccines in Liberia (PREVAIL study), which is administered by the Government of Liberia and the US National Institutes of Health.
Human-to-human transmission linked to the recent cluster of cases in Liberia will end on 14 January 2016, 42 days after the 2 most-recent cases received a second consecutive negative test for Ebola virus, if no further cases are reported. Human-to-human transmission linked to the primary outbreak in Guinea will end on 28 December 2015, 42 days after the country?s most recent case, reported on 29 October, received a second consecutive negative test for Ebola virus. In Sierra Leone, human-to-human transmission linked to the primary outbreak was declared to have ended on 7 November 2015. The country has now entered a 90-day period of enhanced surveillance scheduled to conclude on 5 February 2016.
The recent cluster of cases in Liberia is now understood to have been a result of the re-emergence of Ebola virus that had persisted in a previously infected individual. Although the probability of such re-emergence events is low, the risk of further transmission following a re-emergence underscores the importance of implementing a comprehensive package of services for survivors that includes the testing of appropriate bodily fluids for the presence of Ebola virus RNA. The governments of Liberia and Sierra Leone, with support from partners including WHO and US CDC, have implemented voluntary semen screening and counselling programmes for male survivors in order to help affected individuals understand their risk and take necessary precautions to protect close contacts. A network of clinical services for survivors is also being expanded in Liberia and Sierra Leone, with plans for comprehensive national policies for the care of EVD survivors due to be completed in January 2016.
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No confirmed cases of Ebola virus disease (EVD) were reported in the week to 13 December. All contacts associated with the cluster of 3 confirmed cases of EVD reported from Liberia in the week to 22 November have now completed 21-day follow-up. The first-reported case in the cluster, a 15-year-old boy, died on 23 November. Two subsequent cases, the boy?s father and younger brother, tested negative twice for Ebola virus on 3 December and were discharged. As of 11 December, 210 eligible recipients associated with the cluster had received the rVSV-ZEBOV Ebola vaccine as part of the Partnership for Research on Ebola Vaccines in Liberia (PREVAIL study), which is administered by the Government of Liberia and the US National Institutes of Health.
Human-to-human transmission linked to the recent cluster of cases in Liberia will end on 14 January 2016, 42 days after the 2 most-recent cases received a second consecutive negative test for Ebola virus, if no further cases are reported. Human-to-human transmission linked to the primary outbreak in Guinea will end on 28 December 2015, 42 days after the country?s most recent case, reported on 29 October, received a second consecutive negative test for Ebola virus. In Sierra Leone, human-to-human transmission linked to the primary outbreak was declared to have ended on 7 November 2015. The country has now entered a 90-day period of enhanced surveillance scheduled to conclude on 5 February 2016.
The recent cluster of cases in Liberia is now understood to have been a result of the re-emergence of Ebola virus that had persisted in a previously infected individual. Although the probability of such re-emergence events is low, the risk of further transmission following a re-emergence underscores the importance of implementing a comprehensive package of services for survivors that includes the testing of appropriate bodily fluids for the presence of Ebola virus RNA. The governments of Liberia and Sierra Leone, with support from partners including WHO and US CDC, have implemented voluntary semen screening and counselling programmes for male survivors in order to help affected individuals understand their risk and take necessary precautions to protect close contacts. A network of clinical services for survivors is also being expanded in Liberia and Sierra Leone, with plans for comprehensive national policies for the care of EVD survivors due to be completed in January 2016.
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