CDC reports variant of swine flu not seen previously in people

A?Centers for Diseases Control and Prevention (CDC)?report released yesterday says 18 people in Michigan and Ohio fell ill after an outbreak of Influenza A(H3N2) Variant Virus that had not seen previously in people. Health officials linked the infections to swine exhibits at agricultural fairs. All 18 people have since recovered. Dr. Gregory Poland, director of [...]
Source: News from Mayo Clinic - Category: Databases & Libraries Source Type: news

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This report highlights the potential of variant influenza outbreaks associated with agricultural fair settings in the United States, especially after direct or indirect swine contact.Morbidity &Mortality Weekly Report
Source: Medscape Today Headlines - Category: Consumer Health News Tags: Infectious Diseases Journal Article Source Type: news
Abstract From 2005 to July 6, 2018, a total of 435 swine-origin influenza A H3N2 variant virus (H3N2v) human infections were reported in the USA. The largest H3N2v outbreak in the USA occurred in 2011-2012. This virus obtained the HA gene from human seasonal H3N2 influenza A viruses (seasonal H3N2) via human-to-swine transmission in the mid-1990s and was classified as Cluster IV H3N2v. For early detection of public health threats associated with Cluster IV H3N2v in distinction from seasonal H3N2, we developed highly specific and sensitive one-step real-time RT-PCR assays directly targeting the HA genes of Cluster ...
Source: Japanese Journal of Infectious Diseases - Category: Infectious Diseases Authors: Tags: Jpn J Infect Dis Source Type: research
Abstract On September 17, 2017, the Maryland Department of Agriculture (MDA) was notified by fair and 4-H officials of ill swine at agricultural fair A, held September 14-17. That day, investigation of the 107 swine at fair A revealed five swine with fever and signs of upper respiratory tract illness. All five respiratory specimens collected from these swine tested positive for influenza A virus at the MDA Animal Health Laboratory, and influenza A(H3N2) virus was confirmed in all specimens by the U.S. Department of Agriculture National Veterinary Services Laboratory (NVSL). On September 18, MDA was notified by fai...
Source: MMWR Morb Mortal Wkl... - Category: Epidemiology Authors: Tags: MMWR Morb Mortal Wkly Rep Source Type: research
Publication date: 1 September 2018Source: Preventive Veterinary Medicine, Volume 157Author(s): Sébastien Grech-Angelini, Séverine Hervé, Nicolas Rose, Nicolas Barbier, François Casabianca, Oscar Maestrini, Alessandra Falchi, Gaëlle SimonAbstractCorsica is a mountainous French island in the north-western Mediterranean Sea. It is a rural area, where pig farming is a major economic activity. Although no acute respiratory outbreaks due to swine influenza A viruses (swIAVs) have ever been reported in this free-ranging pig breeding system, influenza A viruses (IAVs) could be circulating within th...
Source: Preventive Veterinary Medicine - Category: Veterinary Research Source Type: research
Summary Influenza A viruses circulate in swine and can spread rapidly among swine when housed in close proximity, such as at agricultural fairs. Youth who have close and prolonged contact with influenzaÔÇÉinfected swine at agricultural fairs may be at increased risk of acquiring influenza virus infection from swine. Animal and human health officials have issued written measures to minimize influenza transmission at agricultural exhibitions; however, there is little information on the knowledge, attitudes, and practice (KAP) of these measures among animal exhibitors. After an August 2016 outbreak of influenza A(H3N2) varian...
Source: Zoonoses and Public Health - Category: Infectious Diseases Authors: Tags: ORIGINAL ARTICLE Source Type: research
AbstractSwine influenza viruses (swIAVs) are known to persist endemically in farrow-to-finish pig farms, leading to repeated swine flu outbreaks in successive batches of pigs at a similar age (mostly around 8  weeks of age). This persistence in European swine herds involves swIAVs from European lineages including H1avN1, H1huN2, H3N2, the 2009 H1N1 pandemic virus and their reassortants. The specific population dynamics of farrow-to-finish pig farms, the immune status of the animals at infection-time, the co-circulation of distinct subtypes leading to consecutive or concomitant infections have been evidenced as factors...
Source: Veterinary Research - Category: Veterinary Research Source Type: research
Conclusion This laboratory study analysed an H7N9 strain of bird flu. Researchers wanted to explore whether a particular change to the surface proteins of a virus was capable of allowing the strain to bind to human tissue. This would theoretically lead to human-to-human transmission of the flu virus. It is worth noting that this ability to attach to human cells does not necessarily mean a mutated bird flu virus will be able to infect, replicate and transmit between humans. Other changes would also be required. However, they were unable to further investigate whether this surface change could lead to human-to-human transmis...
Source: NHS News Feed - Category: Consumer Health News Tags: Heart/lungs Medical practice Source Type: news
Publication date: July 2017 Source:Antiviral Research, Volume 143 Author(s): Miaomiao Wang, Shuyao Wang, Wei Wang, Yi Wang, Hui Wang, Weiming Zhu Development of anti-influenza A virus (IAV) drugs with novel targets and low toxicity is critical for preparedness against influenza outbreaks. In the current study, our results indicated that the novel polyketide compound purpurquinone B (PPQ-B) derived from acid-tolerant fungus Penicillium purpurogenum strain JS03-21 suppressed the replication of IAV in vitro with low toxicity, and may block some stages after virus adsorption. PPQ-B could inhibit H1N1 (A/Puerto Rico/8/34;...
Source: Antiviral Therapy - Category: Virology Source Type: research
Conclusion This study has identified a substance in the mucus secreted by a south Indian frog which can kill certain types of flu virus. Researchers often turn to natural substances with known health-giving properties to find potential new drugs for humans. For example, aspirin was developed based on a compound found in willow bark – which had been used in traditional medicine for hundreds of years. Some other drugs – such as some chemotherapy and anticlotting drugs – have also been developed from chemicals found in plants. By isolating the substances that have an effect the researchers can make sure...
Source: NHS News Feed - Category: Consumer Health News Tags: Heart/lungs Medication Medical practice Source Type: news
Abstract Development of anti-influenza A virus (IAV) drugs with novel targets and low toxicity is critical for preparedness against influenza outbreaks. In the current study, our results indicated that the novel polyketide compound purpurquinone B (PPQ-B) derived from acid-tolerant fungus Penicillium purpurogenum strain JS03-21 suppressed the replication of IAV in vitro with low toxicity, and may block some stages after virus adsorption. PPQ-B could inhibit H1N1 (A/Puerto Rico/8/34; PR8), H1N1 (A/California/04/2009; Cal09) and H3N2 (A/swine/Minnesota/02719/2009) virus replication in vitro, suggesting that PPQ-B po...
Source: Antiviral Research - Category: Virology Authors: Tags: Antiviral Res Source Type: research
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