Parvovirus tends to survive best in which environment?

• A. Wet, dark places
• B. Dry, bright locations
• C. Cold, dry surfaces
• D. On living hosts only

Answer: (A)

Parvovirus has a very tough outer shell (it's non-enveloped), which makes it unusually durable in the environment. Its longevity is greatest when it’s in moist, sheltered conditions, where moisture protects it from desiccation and UV light. That means damp, dark places like kennels, soil, or bedding that stay moist can harbor the virus for extended periods. In contrast, drying out or exposure to bright light and UV rays tends to reduce its viability, so dry, bright surfaces are less favorable for long-term survival. It’s also important to recognize that parvovirus doesn’t rely only on living hosts to persist; it can remain infectious in the environment for months, which is why thorough cleaning and disinfection in areas dogs occupy are essential.