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Scientists Warn of Potential Threats from Canine Coronavirus and Influenza D Viruses
Researchers say these animal-borne viruses could spread among humans if not properly monitored and prepared for.
Jan. 28, 2026 at 4:47pm
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A team of infectious disease experts at the University of Florida has determined that the emerging pathogens, canine coronavirus and influenza D, both have the potential to rapidly spread and cause respiratory disease in humans. The researchers warn that without proper preparation and continued monitoring, these viruses could turn into large-scale human epidemics.
Why it matters
The findings highlight the need for increased vigilance and preparedness when it comes to emerging zoonotic diseases that can jump from animals to humans. Proactive steps to develop reliable diagnostic tests, treatments, and potential vaccines could help prevent these viruses from becoming the next public health threats.
The details
The influenza D virus has mostly been associated with infections in cows and pigs, but a strain recently isolated in China has developed the capacity for human-to-human transmission. Canine coronavirus, known for causing gastrointestinal illness in dogs, has also been linked to pneumonia hospitalizations in Southeast Asia, though it is rarely documented in humans. Experts say the extent to which canine coronavirus affects the human population is not well known due to a lack of routine diagnostic testing.
- The findings were posted in an article in the January 2026 issue of a journal of the Centers for Disease Control and Prevention.
- Influenza D virus was first discovered in 2011.
The players
John Lednicky, Ph.D.
A research professor in the Department of Environmental and Global Health at the University of Florida's College of Public Health and Health Professions, and a co-author of the study.
What they’re saying
“Our review of the literature indicates these two viruses pose respiratory disease threats to humans, yet little has been done to respond to or prevent infection from these viruses. If these viruses evolve the capacity to easily transmit person to person, they may be able to cause epidemics or pandemics since most people won't have immunity to them.”
— John Lednicky, Ph.D., Research Professor
“So far, influenza D virus has not been associated with serious infections in humans. However, canine coronavirus has, but diagnostic tests are not routinely performed for the virus so the extent at which the virus affects the population at large is not known.”
— John Lednicky, Ph.D., Research Professor
What’s next
Scientists suggest that more reliable tests, treatments, and possible vaccines are needed to prevent these viruses from turning into large-scale human epidemics.
The takeaway
This research highlights the importance of proactive disease monitoring and preparedness when it comes to emerging zoonotic threats. Developing the necessary tools to detect, treat, and potentially vaccinate against these viruses could help mitigate the risk of them becoming the next public health crisis.
