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Monkeypox virus cytologic findings: An institutional experience with an emerging threat
CONCLUSIONS: The cytopathic changes of monkeypox are not specific, but their recognition could prompt appropriate PCR testing. Monkeypox shows distinct cytologic changes compared with herpesviruses.PMID:37565756 | DOI:10.1093/ajcp/aqad102
Source: American Journal of Clinical Pathology - August 11, 2023 Category: Pathology Authors: Kartik Viswanathan Katrina M Mansmann Kimberly Workowski Jeannette Guarner Kimberly M Heiman Daniel J Lubin Source Type: research

Molecular characterization of the < em > HMTp210 < /em > gene of < em > Avibacterium paragallinarum < /em > and the proposition of a new genotyping method as alternative for classical serotyping
Avian Pathol. 2023 Jul 20:1-34. doi: 10.1080/03079457.2023.2239178. Online ahead of print.ABSTRACTAvibacterium paragallinarum (A. paragallinarum) is the etiological agent of infectious coryza (IC) in chickens and characterized by acute respiratory distress and severe drop in egg production. Vaccination is important in the control of IC outbreaks and the efficacy of vaccination is dependent on A. paragallinarum serovars included in the vaccine. Classical serotyping of A. paragallinarum is laborious and hampered by the poor availability of antigens and antisera. The hemagglutinin (HA), important in classical serotyping is en...
Source: Avian Pathology - July 20, 2023 Category: Pathology Authors: Rianne Buter Anneke Feberwee Sjaak de Wit Annet Heuvelink Ana da Silva Rodrigo Gallardo Edgardo Soriano Vargas Stefan Swanepoel Arne Jung Mathias T ödte Remco Dijkman Source Type: research

"Live IBD vaccine exacerbates disease and pathological effects of Asian lineage H9N2 LPAIV in chickens."
Avian Pathol. 2023 Jul 13:1-25. doi: 10.1080/03079457.2023.2236994. Online ahead of print.ABSTRACTAvian influenza H9N2 is one of the most circulating viruses in numerous Egyptian poultry farms. The Asian lineage H9N2 exhibits an immunosuppressive effect, and its pathogenicity is amplified when it co-infects with other pathogens, especially with the immunosuppressive infectious bursal disease virus (IBDV), resulting in increased mortality rates. Both vaccines and field infection can exacerbate the pathogenicity of H9N2, particularly in the bursa of Fabricius (B.F), causing more significant lymphoid depletion. To comprehend ...
Source: Avian Pathology - July 13, 2023 Category: Pathology Authors: N W Khalil M A Elshorbagy E M Elboraay A M Helal Source Type: research

The pathogenesis of a 2022 North American highly pathogenic clade 2.3.4.4b H5N1 avian influenza virus in mallards ( < em > Anas platyrhynchos < /em > )
Avian Pathol. 2023 Mar 31:1-28. doi: 10.1080/03079457.2023.2196258. Online ahead of print.ABSTRACTHighly pathogenic (HP) avian influenza viruses (AIVs) of the clade 2.3.4.4 goose/Guangdong/1996 H5 lineage continue to be a problem in poultry and wild birds in much of the world. The recent incursion of a H5N1 clade 2.3.4.4b HP AIV from this lineage into North America has resulted in widespread outbreaks in poultry and consistent detections of the virus across diverse families of birds and occasionally mammals. To characterize the pathobiology of this virus in mallards (Anas platyrhynchos), which are a primary reservoir of AI...
Source: Avian Pathology - March 31, 2023 Category: Pathology Authors: Erica Spackman Mary J Pantin-Jackwood Scott A Lee Diann Prosser Source Type: research

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