What we know about SARS-CoV-2 in pigs hasn’t changed a lot since the first version of this post. It’s still a fairly “good news” situation, but one that could also use some more investigation.
Are pigs susceptible to SARS-CoV-2?
Kind of, but not really. There are somewhat conflicting experimental data, but the debate is
African Swine Fever (ASF) is a devastating viral disease of swine that isn’t currently present in the US or Canada. Although the ASF virus only infects pigs, it is quite hardy and can be tracked around by humans, other animals and contaminated clothing, equipment, animal feed and uncooked pork products (like sausages). It can also
Moving on from cats and dogs, let’s talk about one of our major livestock species, pigs.
Are pigs susceptible to the SARS-CoV-2 virus?
Why did we talk a lot about pigs and SARS-CoV-2 initially?
Another experimental study of the infectivity of SARS-CoV-2 (the virus that causes COVID-19) in several animal species has provided information largely corroborating results of a similar study of SARS-CoV-2 infectivity released last week. Eventually it becomes unnecessary to duplicate studies like this, but at the start of something new like this, repeated study and
Hot on the heels of the experimental study of SARS-CoV-2 in ferrets that I discussed a couple days ago is another new study, available in pre-print, that looked at susceptibility to SARS-CoV-2 in a slightly wider range of animals, including ferrets, cats, dogs, pigs and poultry (Shi et al. 2020). Bear in
Viruses need to attach to cells to infect them, and they do this by binding to specific receptors on the cell. If a virus can’t attach, it can’t infect. Some receptors are very specific to an individual animal species, while some are more general. These differences in receptor binding explain why some viruses only infect
Bacteria are smarter than we give them credit for.
Or maybe we’re not a bright as we think we are.
Antimicrobial stewardship is sometimes (wrongly) assumed to simply be the practice of “using fewer antimicrobials,” but it’s more complex than that, because the issue is complex. At face value, overall reduction in antimicrobial use is
It was only a matter of time, so it’s not particularly surprising, but a potentially devastating pig disease has made its way into Ontario. It’s not a concern to people or other animals, but it’s worth mentioning here anyway (both to say it’s not a public health or non-pig health concern, and since it’s a
Australian Elmer Fudds beware… there are concerns that feral pig hunting is a risk factor for brucellosis in New South Wales. Brucellosis is a rare disease, but a report like this raises concern because it can be nasty, and it can also be hard to diagnose (or it’s not considered right away).
We
While it shouldn’t come as a surprise considering other studies, a recent study in PLoS One (O’Brien et al 2012) has caused a bit of a stir in the US. This study, headed up by Dr. Tara Smith’s research group in Iowa, looked for methicillin-resistant Staphylococcus aureus (MRSA) in retail pork. They bought
