Can ultraviolet rays kill small viruses?

Yes, long-term exposure to ultraviolet rays can kill small viruses. The canine parvovirus is relatively resistant to various physical and chemical factors and disinfectants. Brief exposure to sunlight may not completely eliminate the virus. If a dog has been sick in your home, it is best to continue disinfecting for more than a week, and it is recommended to wait for at least half a year before adopting a new dog.

How long can small viruses survive?

The small viruses can survive for about six months at a temperature of 4°C to 10°C, two weeks at 37°C, 24 hours at 56°C, and 15 seconds at 80°C. Storage at room temperature can lead to a slight decrease in infectivity after three months. If the small viruses are present in feces, they can survive for several months to several years.

How do small viruses spread?

Canine parvovirus mainly infects dogs, especially young dogs, and has a high infectivity. Infected dogs are the main source of transmission, with large amounts of virus in their vomit, saliva, and feces. Even recovered dogs can continue to excrete viruses in their feces for a long time. Healthy dogs can contract the virus through direct contact with sick or carrier dogs, or by ingesting contaminated food and water. Sexual contact between healthy and sick dogs can also transmit the virus.

How to thoroughly disinfect small viruses?

Small viruses are sensitive to physical and chemical substances such as ultraviolet rays, high temperatures, formaldehyde, and fluorides. To thoroughly disinfect small viruses, homeowners can expose contaminated areas to ultraviolet rays, spray fireguns, expose them to sunlight, or use effective disinfectants.