Is the CDC slow-walking the recognition that pigs are a possible vector for Covid-19?

"Some animals have been reported to be infected with SARS-CoV-2 worldwide, including pet cats and dogs in the United States. To date, there have been no reports of horses, cows, pigs, chickens, or ducks testing positive for SARS-COV-2. More studies are needed to understand if and how different animals could be affected by COVID-19." 

https://www.cdc.gov/coronavirus/2019-ncov/animals/events-animal-activities.html