One health approach for the surveillance of novel swine viral diseases / Uma abordagem de saúde única para a vigilância de novas doenças virais de suínos

The novel coronavirus pandemic highlighted the importance of discussing and monitoring emerging diseases to scientific society, particularly in the case of zoonotic diseases. Diseases emerge in nature and infect living beings current on all continents, even in the current scenario of biomedical research evolution. Among the most studied emerging animal diseases are the swine viral diseases, due to their high occurrence and severity. Added to this, is the economic impact on the health of pigs and in some cases on human health. The challenges of swine health include endemic diseases, foodborne and transboundary diseases. Idiopathic vesicular diseases and subclinical diseases have also been identified, either alone or in combination with other infections. Several factors have contributed to these phenomena, but failures in biosecurity, biocontainment, and herd immunity imbalances are critical and must be addressed. Viruses evolve naturally, through mutation, rearrangement, or recombination, either to become more virulent or more transmissible, or not. This review will discuss the broad field of emerging swine viral infections, how monitoring the evolution of these viral agents is of supreme importance. Also, when should a new disease or emerging agent is considered a risk to swine production? Although the evolution of pork production systems is admirable, animal diseases continue to account for 20% of the losses. Therefore, international organizations work with member countries to prevent animal diseases, ensure food supply, maintain household income, health, and preserve the future. One Health is not just a concept, but an action of surveillance and control that all countries must implement.

A pandemia do novo coronavírus enfatizou a importância que a discussão e a vigilância de doenças emergentes representam para a sociedade científica, especialmente no caso de doenças zoonóticas. Mesmo no atual cenário de evolução da pesquisa biomédica, as doenças surgem na natureza e infectam os seres vivos em todos os continentes. Entre as doenças animais emergentes mais estudadas estão as doenças virais suínas, devido à sua alta ocorrência e gravidade. Soma-se a isso o impacto econômico na saúde dos suínos e, em alguns casos, na saúde humana. Os desafios da saúde suína incluem doenças endêmicas, doenças transmitidas por alimentos e doenças transfronteiriças. Além disso, doenças vesiculares idiopáticas e doenças subclínicas foram identificadas isoladamente ou em co-infecções. Vários fatores desencadearam esses fenômenos, mas falhas na biossegurança, biocontenção e desequilíbrio na imunidade do rebanho são fundamentais e devem ser corrigidos. Os vírus evoluem naturalmente, por mutação, rearranjo ou recombinação, para se tornarem mais virulentos ou mais transmissíveis, ou não. Esta revisão discutirá o amplo campo de infecções virais suínas emergentes e como o monitoramento da evolução desses agentes virais é de suma importância. Além disso, quando considerar uma nova doença ou agente emergente um risco para a suinocultura. A evolução dos sistemas de produção de suínos é admirável, mas as doenças dos animais ainda respondem por 20% das perdas. Portanto, as organizações internacionais trabalham com os países membros para prevenir doenças animais, garantir o abastecimento de alimentos, manter a renda familiar, a saúde e preservar o futuro. Saúde Única não é apenas um conceito, mas uma ação de vigilância e controle que todos os países devem implementar.

Análise do desempenho do sistema de vigilância sanitária animal no surto de doença vesicular em suínos no estado de Santa Catarina - Brasil / Analysis of the performance of the animal health surveillance system in the outbreak of swine vesicular disease in the state of Santa Catarina - Brazil

Background: The occurrence of vesicular disease associated with Senecavirus A in a pig-producing region of Santa Catarina increased in 2015, reflected by the number of syndromic notifications to the official animal health service. In view of the recurrence of this event in 2018, the objectives of this study were to analyze the official data related to cases of suspected vesicular disease in pigs and to evaluate whether the experience in conducting the investigations of 2015 was incorporated into the years subsequent to 2015. We addressed this goal by analysis of the performance parameters of the state animal health surveillance system. Materials, Methods & Results: Descriptive analyses of data from official investigations of suspected vesicular disease in swine in different regions were carried out, and statistical models were used to: i) test the effect of the year on the age of the investigated injuries; ii) assess whether there was an association between the year and the type of outcome of the official investigation (discarded case or a probable case of vesicular disease, which resulted in the collection of samples for laboratory diagnosis and interdiction of the affected properties); iii) evaluate whether there was an association between the year and the detection of Senecavirus A RNA among the molecular analyses carried out after a case was classified as probable vesicular disease. From 05/22/2015 to 03/28/2019, there were 2093 notifications of suspected vesicular disease in pigs to the official service of Santa Catarina, with 1538 (73.5%) occurring in 2015 and 555 (26.5%) in subsequent years. After 2015, when compared to the base year, the chances of detecting late vesicular lesions (>3 days) were similar (increased 1.11 times, but there was no statistically significant association), in view of a panorama in which 55.29% of cases had the lesions classified as late throughout the analyzed period. The...