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China reports new human cases of avian influenza A (H2N9) and A (H5N6)
Posted on 22 jan. 2021 at 3:45 p.m.
Author: Jacques MORVAN
Two new cases of human infection with an avian influenza virus were reported by China to the World Health Organization (WHO) between January 1 and January 7, 2021. The first case involved an infection with type A virus (H5N6) reported in a 51-year-old farmer in Yongchuan District, Chongqing Township who had been exposed to domestic poultry before the disease onset. He had developed symptoms on December 18, 2020, was admitted to hospital on December 28 with severe pneumonia and was apparently in critical condition at the time of the report.
The second case involved an infection with type A (H9N2) virus that occurred in the first week of 2021 in a 16-month-old boy in Yunfu City, Guangdong Province, who had been exposed to domestic poultry. before the onset of the disease. He had developed mild symptoms on December 28, 2020 and was admitted to hospital on December 29. As of January 4, 2021, no further cases have been reported in the family.
On the occasion of these two reports, WHO took stock of human infections due to an avian influenza virus in the Western Pacific region. Human infection with avian influenza A (H5N1) virus Between January 1 and January 7, 2021, no new cases of human infection with the avian influenza A (H5N1) virus were reported to WHO.
..... Human infection with avian influenza A (H7N9) virus Between January 1 and January 7, 2021, no new cases of human infection with avian influenza A (H7N9) virus were reported to WHO in the Western Pacific region.
As of January 7, 2021, a total of 1,568 laboratory-confirmed human infections with avian influenza A (H7N9) virus have been reported to WHO since the start of 2013. Thirty-three of these were infected with the Highly pathogenic avian influenza virus (GAHP) A (H7N9), in which the hemagglutinin gene has mutations indicating a change to high pathogenicity in poultry. These 33 cases were from Taiwan (the case had a history of travel to Guangdong), Guangxi, Guangdong, Hunan, Shaanxi, Hebei, Henan, Fujian, Yunnan and Inner Mongolia. No increased transmissibility or virulence of the virus in humans has been detected in relation to the GAHP A (H7N9) virus. The number and geographic distribution of human infections with the A (H7N9) avian influenza virus during the fifth epidemic wave (October 1, 2016 - September 30, 2017) was greater than in previous waves and subsequent waves. Human infections with the A (H7N9) virus are unusual and should be monitored closely to identify changes in the virus and transmission behavior to humans, as this can have serious public health consequences. Human infection with avian influenza A (H9N2) On December 9, 2020, six new cases of human infection with avian influenza A (H9N2) virus were reported in the Western Pacific region. Cases were detected retrospectively by Influenza-like Illness Surveillance between July 2019 and December 2020. No deaths were reported among the reported cases and all six cases presented with mild symptoms. Five of the cases were exposed to poultry. In 2020, thirteen cases were reported in China and 42 cases of human infection with avian influenza A (H9N2) have been reported in China since December 2015. Source: Outbreak News Today; World Health Organization
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Posted on 22 jan. 2021 at 3:45 p.m.
Author: Jacques MORVAN
Two new cases of human infection with an avian influenza virus were reported by China to the World Health Organization (WHO) between January 1 and January 7, 2021. The first case involved an infection with type A virus (H5N6) reported in a 51-year-old farmer in Yongchuan District, Chongqing Township who had been exposed to domestic poultry before the disease onset. He had developed symptoms on December 18, 2020, was admitted to hospital on December 28 with severe pneumonia and was apparently in critical condition at the time of the report.
The second case involved an infection with type A (H9N2) virus that occurred in the first week of 2021 in a 16-month-old boy in Yunfu City, Guangdong Province, who had been exposed to domestic poultry. before the onset of the disease. He had developed mild symptoms on December 28, 2020 and was admitted to hospital on December 29. As of January 4, 2021, no further cases have been reported in the family.
On the occasion of these two reports, WHO took stock of human infections due to an avian influenza virus in the Western Pacific region. Human infection with avian influenza A (H5N1) virus Between January 1 and January 7, 2021, no new cases of human infection with the avian influenza A (H5N1) virus were reported to WHO.
..... Human infection with avian influenza A (H7N9) virus Between January 1 and January 7, 2021, no new cases of human infection with avian influenza A (H7N9) virus were reported to WHO in the Western Pacific region.
As of January 7, 2021, a total of 1,568 laboratory-confirmed human infections with avian influenza A (H7N9) virus have been reported to WHO since the start of 2013. Thirty-three of these were infected with the Highly pathogenic avian influenza virus (GAHP) A (H7N9), in which the hemagglutinin gene has mutations indicating a change to high pathogenicity in poultry. These 33 cases were from Taiwan (the case had a history of travel to Guangdong), Guangxi, Guangdong, Hunan, Shaanxi, Hebei, Henan, Fujian, Yunnan and Inner Mongolia. No increased transmissibility or virulence of the virus in humans has been detected in relation to the GAHP A (H7N9) virus. The number and geographic distribution of human infections with the A (H7N9) avian influenza virus during the fifth epidemic wave (October 1, 2016 - September 30, 2017) was greater than in previous waves and subsequent waves. Human infections with the A (H7N9) virus are unusual and should be monitored closely to identify changes in the virus and transmission behavior to humans, as this can have serious public health consequences. Human infection with avian influenza A (H9N2) On December 9, 2020, six new cases of human infection with avian influenza A (H9N2) virus were reported in the Western Pacific region. Cases were detected retrospectively by Influenza-like Illness Surveillance between July 2019 and December 2020. No deaths were reported among the reported cases and all six cases presented with mild symptoms. Five of the cases were exposed to poultry. In 2020, thirteen cases were reported in China and 42 cases of human infection with avian influenza A (H9N2) have been reported in China since December 2015. Source: Outbreak News Today; World Health Organization
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