What type of vaccine is given to prevent canine parvovirus?

The live attenuated vaccine is the correct choice for preventing canine parvovirus because it contains a weakened form of the virus that can stimulate a strong immune response. This type of vaccine mimics a natural infection, allowing the dog's immune system to develop a robust and lasting immunity against the parvovirus without causing the disease itself.

Live attenuated vaccines generally provide good protection and can often induce both humoral (antibody-mediated) and cell-mediated immunity. These characteristics make them highly effective in preventing infections like canine parvovirus, which can be severe and life-threatening in young dogs.

In contrast, inactivated vaccines contain killed viruses or components of the virus, which may not elicit as strong an immune response as live attenuated vaccines. Recombinant vaccines involve genetically engineered proteins that may not provide the same level of immunity as live solutions, while subunit vaccines use only pieces of the virus, which typically require multiple doses for effective immunity. Thus, the live attenuated vaccine stands out as the most effective method for preventing canine parvovirus.