Publications by authors named "T M Joannis"
Since 2006, multiple outbreaks of avian influenza (AI) have been reported in Nigeria involving different subtypes. Surveillance and molecular epidemiology have revealed the vital role of live bird markets (LBMs) in the dissemination of AI virus to commercial poultry farms. To better understand the ecology and epidemiology of AI in Nigeria, we performed whole-genome sequencing of nineteen H9N2 viruses recovered, from apparently healthy poultry species, during active surveillance conducted in nine LBMs across Nigeria in 2019.
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- * A study analyzed 20 highly pathogenic avian influenza H5N8 viruses from live bird markets and reported outbreaks between 2016 and 2019, revealing four distinct genetic groups related to different geographic origins.
- * The findings underscore the importance of unified surveillance efforts in Nigeria and surrounding regions to manage avian influenza and prevent potential zoonotic transmission to humans.
In December 2018, suspected outbreaks of equine influenza (EI) were observed in donkeys in Sokoto State, in the extreme northwest of Nigeria bordering the Republic of the Niger. Equine influenza virus (EIV) subtype H3N8 was the etiologic agent identified in the outbreaks using real-time RT-qPCR and sequencing of both the partial haemagglutinin (HA) gene and the complete genome. Since then the H3N8 virus spread to 7 of the 19 northern states of Nigeria, where it affected both donkeys and horses.
View Article and Find Full Text PDFWe report detection of a highly pathogenic avian influenza A(H5N8) clade 2.3.4.
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