The Dynavyte vet has previously written an article about the antiviral effects of Bacillus subtilis. Activity against rotavirus and human influenza virus has been backed by research.
Recent interest in coronavirus has stimulated further investigation into the antiviral attributes of Bacillus subtilis. Many studies have found antiviral properties including these listed below of interest to production animals:
Suid Herpes Virus (causing Pseudorabies or Aujeszky's disease – in pigs and other farm animals including sheep and goats).
Vesicular Stomatitis Virus (primarily affects cattle and horses and can affect sheep, goats, pigs, llamas and alpacas).
Newcastle Disease Virus (chickens)
Infectious Bursal Disease Virus (chickens)
Porcine Parvovirus (pigs)
Bovine Viral Diarrhoea Virus (cattle)
Transmissible Gastroenteritis Virus (a coronavirus of pigs causing diarrhoea) – COVID-19 has also been shown to be found in faeces of children. Coronaviruses in mammals can cause both respiratory problems and diarrhoea.