Alessandro Zulli, etc.,al. [preprint]Infectivity and persistence of influenza viruses in raw milk. https://doi.org/10.1101/2024.10.10.24315269
Influenza A viruses present a significant public health risk, with recent outbreaks of highly pathogenic avian influenza (HPAI) H5N1 in dairy cattle raising concerns about potential transmission through raw milk consumption. This study investigated the persistence of influenza A virus PR8 (IAV PR8) in raw cow milk at 4 °C. We found that IAV PR8 remained infectious in raw milk for up to 5 days, with a decay rate constant of ?2.05 day?1. In contrast, viral RNA remained detectable and stable for at least 57 days, with no significant degradation. Pasteurization (63°C for 30 minutes) significantly reduced detectable viral RNA concentrations, but reduction was less than 1 log. These findings highlight the potential risk of zoonotic virus transmission through raw milk consumption and underscore the importance of milk pasteurization. The prolonged persistence of viral RNA in both raw and pasteurized milk has implications for food safety assessments and environmental monitoring, particularly in the context of environmental surveillance for influenza viruses.
See Also:
Latest articles in those days:
- [preprint]Highly pathogenic avian influenza management in high-density poultry farming areas 19 hours ago
- [preprint]Dairy cattle herds mount a characteristic antibody response to highly pathogenic H5N1 avian influenza viruses 19 hours ago
- Intranasal influenza virus-vectored vaccine offers protection against clade 2.3.4.4b H5N1 infection in small animal models 1 days ago
- Mapping of stakeholders in avian influenza surveillance in Canada 2 days ago
- [preprint]Population Immunity to Hemagglutinin Head, Stalk and Neuraminidase of Highly Pathogenic Avian Influenza 2.3.4.4b A(H5N1) viruses in the United States and the Impact of Seasonal Influenza on 2 days ago
[Go Top] [Close Window]