National Parvo Awareness Day is observed on the fourth Tuesday in April to raise awareness about the canine parvovirus, a highly contagious and deadly virus affecting dogs, particularly unvaccinated puppies. This day aims to educate pet owners and the veterinary community about the risks, symptoms, and treatments associated with parvo, as research indicates a significant knowledge gap among dog owners regarding the disease. The observance marks the beginning of parvo season, which typically runs from early spring to mid-summer, when the risk of infection is heightened. Approximately 900 dogs are diagnosed with parvo daily in the U.S., and without timely care, the mortality rate can reach as high as 91%. The day encourages discussions about the dangers of parvo and promotes actions to protect pets from this virus.