8 results on '"Chunge Zhang"'
Search Results
2. Genetic, biological and epidemiological study on a cluster of H9N2 avian influenza virus infections among chickens, a pet cat, and humans at a backyard farm in Guangxi, China
- Author
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Jing Yang, Jianhua Yan, Cheng Zhang, Shanqin Li, Manhua Yuan, Chunge Zhang, Chenguang Shen, Yang Yang, Lifeng Fu, Guanlong Xu, Weifeng Shi, Zhenghai Ma, Ting Rong Luo, and Yuhai Bi
- Subjects
H9N2 ,avian influenza virus ,interspecies transmission ,genetic evolution ,public health risk ,Infectious and parasitic diseases ,RC109-216 ,Microbiology ,QR1-502 - Abstract
ABSTRACTDuring an investigation in October 2018, two people with diarrhoea, mild abdominal pain, and mild arthralgia symptoms in Guangxi, China, were identified as infected by H9N2 avian influenza virus (AIV). Four H9N2 AIVs were isolated from one of two patients, a pet cat, and a dead chicken (two respective isolates from its lung and kidney tissues) bred by the patients at a backyard farm. Epidemiological investigation indicated that the newly bought chicken died first, and clinical syndromes appeared subsequently in the two owners and one cat. Furthermore, the two individuals possessed high H9N2-specific hemagglutination inhibition and microneutralization antibodies. Shared nucleotide sequence identity (99.9% – 100%) for all genes was detected in the four H9N2 isolates, and hemagglutinin (HA) T138A located on the receptor binding domain (RBD), resulted from nucleotide polymorphisms that were exclusively found in the isolate from the female patient. Moreover, HA K137N on the RBD was found in isolates from these three host species. Importantly, these four H9N2 isolates presented an exclusive binding preference for the human-type receptor (α2-6-SA), and could replicate and cause pathological changes in mice. Phylogenetic analyses showed that these four isolates clustered together and belonged to clade C1.2, lineage Y280. In addition, H9N2 viruses of human origin are genetically divergent and interspersed with the widespread poultry-origin H9N2 AIVs. All these results indicate a high risk of H9N2 AIVs in public health, and effective prevention and control measures against H9N2 AIVs should be considered and performed for both animal and human health.
- Published
- 2023
- Full Text
- View/download PDF
3. Implementation effect of a hierarchical pharmaceutical service pattern in patients with systemic lupus erythematosus
- Author
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Yinhua Gong, Wei Wei, Wei Zhang, Qiang Han, and Chunge Zhang
- Subjects
Medicine (General) ,R5-920 - Abstract
Objectives This study evaluated the effect of implementing a hierarchical pharmaceutical service pattern based on the knowledge–attitude–practice (KAP) intervention theory on patients with systemic lupus erythematosus. Methods Eligible patients were randomly divided into an intervention or control group. Pharmaceutical service classification criteria were formulated and used to provide patients with differing levels of pharmaceutical services. The classification scores and KAP levels of patients before and at various time points after the intervention were analyzed. The rates of acute attacks and adverse reactions, related clinical test indices, and disease activity were evaluated in both groups. Results After 9 months of intervention, the proportions of first- and second-level services in the intervention group declined by 14.43% and 3.94%, respectively, compared with the control group, and the rates of acute attacks and adverse reactions declined by 18.26% and 12.43%, respectively. The KAP level, clinical test indices, and disease activity were significantly different between the groups. Conclusion Providing patients with systemic lupus erythematosus with pertinent hierarchical pharmaceutical services based on the KAP theory was instrumental in changing patients’ behavior and contributed to facilitating disease self-management, thus improving the quality of pharmaceutical services.
- Published
- 2023
- Full Text
- View/download PDF
4. Co-existence and co-infection of influenza A viruses and coronaviruses: Public health challenges
- Author
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Jing Yang, Yuhuan Gong, Chunge Zhang, Ju Sun, Gary Wong, Weifeng Shi, Wenjun Liu, George F. Gao, and Yuhai Bi
- Subjects
SARS-CoV-2 ,co-infection ,influenza A virus ,coronavirus ,co-existence ,public health challenges ,Science (General) ,Q1-390 - Abstract
Since the 20th century, humans have lived through five pandemics caused by influenza A viruses (IAVs) (H1N1/1918, H2N2/1957, H3N2/1968, and H1N1/2009) and the coronavirus (CoV) severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). IAVs and CoVs both have broad host ranges and share multiple hosts. Virus co-circulation and even co-infections facilitate genetic reassortment among IAVs and recombination among CoVs, further altering virus evolution dynamics and generating novel variants with increased cross-species transmission risk. Moreover, SARS-CoV-2 may maintain long-term circulation in humans as seasonal IAVs. Co-existence and co-infection of both viruses in humans could alter disease transmission patterns and aggravate disease burden. Herein, we demonstrate how virus-host ecology correlates with the co-existence and co-infection of IAVs and/or CoVs, further affecting virus evolution and disease dynamics and burden, calling for active virus surveillance and countermeasures for future public health challenges.
- Published
- 2022
- Full Text
- View/download PDF
5. Re-emergence of H5N8 highly pathogenic avian influenza virus in wild birds, China
- Author
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Juan Li, Chunge Zhang, Jian Cao, Yongchun Yang, Hui Dong, Yanan Cui, Xue Yao, Hong Zhou, Lu Lu, Samantha Lycett, Xiaodu Wang, Houhui Song, Wenjun Liu, George F. Gao, Weifeng Shi, and Yuhai Bi
- Subjects
Highly pathogenic avian influenza virus (HPAIV) ,H5N8 ,clade 2.3.4.4b ,migratory birds ,re-emergence ,Infectious and parasitic diseases ,RC109-216 ,Microbiology ,QR1-502 - Abstract
In mid-November 2020, deaths of whooper swan were reported in the Yellow River Reservoir Area, China. In the present study, we describe the genetic characterizations and phylogenetic relationships of four clade 2.3.4.4b H5N8 highly avian influenza viruses (HPAIVs) identified from a sick whooper swan and environmental samples collected in the Yellow River Reservoir Area in late November 2020. They were closely related to recent H5Nx HPAIVs causing outbreaks in Eurasia in the 2020-2021 influenza season, suggesting these isolates might be imported into China via migratory birds. The newly identified H5N8 HPAIVs possessed Q226 and G228 (H3 numbering), indicating that they prefer to avian-like receptors. However, they had three mutations falling within known antigenic regions, including T144A in antigenic region A, T192I in antigenic region B, and N240D in antigenic region D. Our study highlights the risk of the rapid global spread of H5N8 HPAIVs and the necessity for continuous monitoring of avian influenza viruses in wild birds.
- Published
- 2021
- Full Text
- View/download PDF
6. Genetic, biological and epidemiological study on a cluster of H9N2 avian influenza virus infections among chickens, a pet cat, and humans at a backyard farm in Guangxi, China
- Author
-
Jing Yang, Jianhua Yan, Cheng Zhang, Shanqin Li, Manhua Yuan, Chunge Zhang, Chenguang Shen, Yang Yang, Lifeng Fu, Guanlong Xu, Weifeng Shi, Zhenghai Ma, Ting Rong Luo, and Yuhai Bi
- Subjects
China ,Farms ,Epidemiology ,Immunology ,General Medicine ,Cat Diseases ,Microbiology ,Mice ,Infectious Diseases ,Hemagglutinins ,Orthomyxoviridae Infections ,Virology ,Influenza in Birds ,Drug Discovery ,Influenza, Human ,Cats ,Influenza A Virus, H9N2 Subtype ,Animals ,Humans ,Parasitology ,Female ,Chickens ,Phylogeny - Abstract
During an investigation in October 2018, two people with diarrhoea, mild abdominal pain, and mild arthralgia symptoms in Guangxi, China, were identified as infected by H9N2 avian influenza virus (AIV). Four H9N2 AIVs were isolated from one of two patients, a pet cat, and a dead chicken (two respective isolates from its lung and kidney tissues) bred by the patients at a backyard farm. Epidemiological investigation indicated that the newly bought chicken died first, and clinical syndromes appeared subsequently in the two owners and one cat. Furthermore, the two individuals possessed high H9N2-specific hemagglutination inhibition and microneutralization antibodies. Shared nucleotide sequence identity (99.9% - 100%) for all genes was detected in the four H9N2 isolates, and hemagglutinin (HA) T138A located on the receptor binding domain (RBD), resulted from nucleotide polymorphisms that were exclusively found in the isolate from the female patient. Moreover, HA K137N on the RBD was found in isolates from these three host species. Importantly, these four H9N2 isolates presented an exclusive binding preference for the human-type receptor (α2-6-SA), and could replicate and cause pathological changes in mice. Phylogenetic analyses showed that these four isolates clustered together and belonged to clade C1.2, lineage Y280. In addition, H9N2 viruses of human origin are genetically divergent and interspersed with the widespread poultry-origin H9N2 AIVs. All these results indicate a high risk of H9N2 AIVs in public health, and effective prevention and control measures against H9N2 AIVs should be considered and performed for both animal and human health.
- Published
- 2022
7. Three Novel Avastroviruses Identified in Dead Wild Crows
- Author
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Yongchun Yang, Chunge Zhang, Yuhai Bi, George F. Gao, Weifeng Shi, Jian Cao, Xiaodu Wang, Cheng Zhang, Peihan Wang, Tao Hu, Juan Li, Hong Zhou, Gary Wong, and Houhui Song
- Subjects
Crows ,medicine.medical_specialty ,Medical microbiology ,Letter ,Virology ,Immunology ,medicine ,MEDLINE ,Molecular Medicine ,Animals ,Biology ,Avastrovirus - Published
- 2021
8. Re-emergence of H5N8 highly pathogenic avian influenza virus in wild birds, China
- Author
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Yuhai Bi, George F. Gao, Yanan Cui, Samantha Lycett, Yongchun Yang, Jian Cao, Houhui Song, Xiaodu Wang, Chunge Zhang, Lu Lu, Weifeng Shi, Juan Li, Hong Zhou, Xue Yao, Hui Dong, and Wenjun Liu
- Subjects
China ,migratory birds ,Letter ,Epidemiology ,Immunology ,re-emergence ,Zoology ,Animals, Wild ,Biology ,Microbiology ,Communicable Diseases, Emerging ,Poultry ,Disease Outbreaks ,Birds ,H5N8 ,Virology ,Drug Discovery ,Animals ,Influenza A Virus, H5N8 Subtype ,Phylogeny ,Poultry Diseases ,Phylogenetic tree ,clade 2.3.4.4b ,virus diseases ,General Medicine ,biology.organism_classification ,Infectious Diseases ,Highly pathogenic avian influenza virus (HPAIV) ,Highly Pathogenic Avian Influenza Virus ,Whooper swan ,Influenza in Birds ,Parasitology ,Reassortant Viruses - Abstract
In mid-November 2020, deaths of whooper swan were reported in the Yellow River Reservoir Area, China. In the present study, we describe the genetic characterizations and phylogenetic relationships of four clade 2.3.4.4b H5N8 highly avian influenza viruses (HPAIVs) identified from a sick whooper swan and environmental samples collected in the Yellow River Reservoir Area in late November 2020. They were closely related to recent H5Nx HPAIVs causing outbreaks in Eurasia in the 2020-2021 influenza season, suggesting these isolates might be imported into China via migratory birds. The newly identified H5N8 HPAIVs possessed Q226 and G228 (H3 numbering), indicating that they prefer to avian-like receptors. However, they had three mutations falling within known antigenic regions, including T144A in antigenic region A, T192I in antigenic region B, and N240D in antigenic region D. Our study highlights the risk of the rapid global spread of H5N8 HPAIVs and the necessity for continuous monitoring of avian influenza viruses in wild birds.
- Published
- 2021
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