Abstract: Estimating Transmission Dynamics of African Swine Fever Virus from Experimental Studies

Jan 09, 2023

Abstract: Estimating transmission dynamics of African swine fever virus from experimental studies

African swine fever virus (ASFV) continues to spread across the world, and currently, there are no treatments or vaccines available to combat this virus. Reliable estimates of transmission parameters for ASFV are therefore needed to establish effective contingency plans. This study used data from controlled ASFV inoculations of pigs to assess the transmission parameters. Three models were developed with (binary, piecewise-linear and exponential) time-dependent levels of infectiousness based on latency periods of 3-5 days derived from the analysis of 294 ethylenediamine tetraacetic acid-stabilized blood samples originating from 16 pigs with direct and 10 pigs with indirect contact to 8 inoculated pigs. The models were evaluated for three different discrete latency periods of infection. The likelihood ratio test showed that a binary model had an equally good fit for a latency period of 4 or 5 days as the piecewise-linear and exponential model. However, for a latency period of 3 days, the piecewise-linear and exponential models had the best fit.

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Video: CEOs of the Industry, A Conversation with Daniel Rivest, President & CEO, Olymel

Swine Web’s CEOs of the Industry series welcomes Daniel Rivest, President & CEO of Olymel, for a wide-ranging conversation about leadership, the future of Canadian pork, and the opportunities ahead for one of North America’s largest pork and poultry processors.

Rivest discusses his journey to the CEO role, his leadership philosophy, and his early priorities at Olymel. The conversation explores the company’s strategic direction, its relationships with producers, and how Olymel is positioning itself for long-term growth and competitiveness.

The discussion also tackles some of the biggest issues facing Canadian pork production today, including labor availability, global competition, animal health, trade and export markets, automation, and the growing potential of artificial intelligence throughout the food production system.

Topics include:

• Daniel Rivest’s path to becoming President & CEO of Olymel

• Olymel’s current position and strategic direction

• The outlook for Canadian pork production

• Building stronger relationships with producers

• Global trade and key export markets

• Automation, innovation and artificial intelligence

• Leadership lessons and opportunities for the next generation

The conversation concludes with a Fast Five, giving viewers a more personal look at Rivest’s leadership approach and his vision for Olymel’s future.