Serological survey of influenza A viruses in domestic and wild Suidae in Corsica (France), a Mediterranean island environment

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 this pig population. A serological study was conducted as a first approach to domestic pigs and wild boars. Serum samples from 543 pigs raised on 91 different farms were collected during the 2013–2014 slaughtering season, and 279 sera from wild boars were obtained over four hunting seasons (between 2009 and 2014). They were first analysed by ELISA and then IAV positive and doubtful sera were subjected to haemagglutination inhibition tests using antigens representative of the four major enzootic swIAV lineages in Europe, i.e. avian-like swine H1N1 (H1avN1), pandemic-like swine H1N1 (H1N1pdm), H1N2 and H3N2. According to the ELISA results, 26.4% (CI95%: 17.7–36.7%) of herds had at least one positive animal (positive or doubtful by ELISA) and 12.4% (CI95%: 7.8–19.8%) of the pigs tested positive. Using the test characteristics (sensitivity and sp...
Source: Preventive Veterinary Medicine - Category: Veterinary Research Source Type: research

Related Links:

Authors: Siqueira-Batista R, De Souza Bayão T, Do Carmo Cupertino M, Alfred Joseph Mayers N, Patrícia Gomes A Abstract Yellow fever is an acute febrile illness for which there is no specific antiviral treatment. Since 2016, Brazil has experienced two outbreaks, and collective health measures have been adopted to contain these grievances. However, published data about the drug sofosbuvir against flaviviruses are promising, suggesting the relevance of conducting future clinical trials. PMID: 31613184 [PubMed - as supplied by publisher]
Source: Pathogens and Global Health - Category: International Medicine & Public Health Tags: Pathog Glob Health Source Type: research
Authors: Javaudin F, Her S, Le Bastard Q, De Carvalho H, Le Conte P, Baert V, Hubert H, Montassier E, Lascarrou JB, Leclère B, and the GR-RéAC Abstract BACKGROUND: The end-tidal carbon dioxide (ETCO2) concentration during resuscitation (CPR) of an out-of-hospital cardiac arrest (OHCA) has an increasingly well-known prognostic value. Nevertheless, few studies have investigated its maximum value in different etiologies. METHODS: It was a retrospective, observational, multicentre study from the French OHCA Registry. All adult OHCA with a known maximum value of ETCO2 during CPR were included. The prim...
Source: Prehospital Emergency Care - Category: Endocrinology Tags: Prehosp Emerg Care Source Type: research
CONCLUSION: Physicians should be aware of performances of 16S PCR. Dialogue between physicians and bacteriologists is essential for appropriate selection of indications and correct interpretation of results. PMID: 31611135 [PubMed - as supplied by publisher]
Source: Medecine et Maladies Infectieuses - Category: Infectious Diseases Tags: Med Mal Infect Source Type: research
Authors: Goullé JP, Grangeot-Keros L Abstract French people have never been so wary about vaccines. The use of aluminum salts in vaccine adjuvants to enhance effectiveness is one of the major reasons for this lack of confidence. The direct toxicity of aluminum is often put forward. Direct toxicity of aluminum has long been known-especially with occupational exposure-to be associated with characteristic clinical manifestations and increased blood aluminum level. Intoxication related to the excessive amount of an element in the body, whether be it lead poisoning following exposure to lead or mercury poisoning ...
Source: Medecine et Maladies Infectieuses - Category: Infectious Diseases Tags: Med Mal Infect Source Type: research
DiscussionA common procedure for assessing cognitive and psychobehavioral function is now available in patients with epilepsy undergoing surgical evaluation have been established, they may help to improve the quality of care and the patient experience. This work highlights the need of furthers investigations and the necessity to develop specific tools with normative data.
Source: Epilepsy and Behavior - Category: Neurology Source Type: research
Source: BMJ Comments - Category: General Medicine Source Type: forums
Publication date: Available online 7 September 2016 Source:Veterinary Microbiology Author(s): Maria Serena Beato, Luca Tassoni, Adelaide Milani, Annalisa Salviato, Guido Di Martino, Monica Mion, Lebana Bonfanti, Isabella Monne, Simon James Watson, Alice Fusaro In August 2012 repeated respiratory outbreaks caused by swine influenza A virus (swIAV) were registered for a whole year in a breeding farm in northeast Italy that supplied piglets for fattening. The virus, initially characterized in the farm, was a reassortant Eurasian avian-like H1N1 (H1avN1) genotype, containing a haemagglutinin segment derived from the pandemic ...
Source: Veterinary Microbiology - Category: Veterinary Research Source Type: research
Discussion Through new surveillance efforts and phylogenetic analysis of IAV-S in Mexico and Chile, we have expanded our understanding of the extensive IAV-S diversity that circulates in swine in Latin America. Most notably, we have identified multiple novel clades of H3N2 and H1N1 viruses of human origin in Mexico and Chile that have not been identified in swine previously, highlighting the importance of the human-swine interface in the evolution of IAV-S diversity in Latin America. The presence of two different IAV-S lineages in Mexico that are related to North American IAV-S (classical H1N1 and H3-cluster IV) also demon...
Source: PLOS Currents Outbreaks - Category: Epidemiology Authors: Source Type: research
The objectives of this study were to describe the control measures implemented since October 2013 in response to this outbreak and to compare virus occurrence in piglets ‒ the subpopulation likely responsible for viral maintenance within the herd5,6 ‒ using a pre-post intervention study design. Additionally, the pattern of maternally-derived immunity in piglets sourced from the affected herd was assessed. Methods Study farm The study farm consisted of an intensive, closed-cycle swine breeding farm housing approximately 1,100 sows/gilts and 23,000 piglets located in North-East Italy. This farm supplies ~90 day-old pi...
Source: PLOS Currents Outbreaks - Category: Epidemiology Authors: Source Type: research
More News: Bird Flu | Environmental Health | Flu Pandemic | France Health | H1N1 | H1N2 | H3N2 | Influenza | Outbreaks | Pandemics | Respiratory Medicine | Rural Health | Study | Swine Flu | Veterinary Research