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Cases of parvovirus B19 have jumped in the U.S. Here’s what you need to know about the illness that affects dogs and humans, causing a “slapped cheek” look.
P arvovirus B19, a respiratory virus that causes a telltale “slapped-cheek” rash, is on the rise in the U.S., according to an Aug. 13 alert from the U.S. Centers for Disease Control and ...
According to the CDC, the parvovirus B19 infection rate was less than a 3% in all age groups from 2022 to June 2024. Then in June , the infection rate suddenly jumped to 10%.
Canine parvovirus (also referred to as CPV, CPV2, or parvo) is a contagious virus mainly affecting dogs and wolves. CPV is highly contagious and is spread from dog to dog by direct or indirect contact with their feces. Vaccines can prevent this infection, but mortality can reach 91% in untreated cases.
Parvovirus B19 will start replicating from anywhere for four to eighteen days. Infected children will be most contagious during this time and before they develop the most notable sign, a red rash on their cheeks, and other symptoms. [4] Since parvovirus B19 is a single stranded DNA virus, replication can only occur in dividing cells. [8]
Parvovirus B19 causes an infection in humans only. Cat and dog parvoviruses do not infect humans due to animals having their own parvoviruses. There is always a possibility for a spillover. There is no vaccine available for human parvovirus B19, [33] though attempts have been made to develop one. [34] [35]
It can occur in older dogs that were never vaccinated as puppies, and some studies indicate that adults that get sick and are not treated die about 10% of the time, which is a lot less than the 90 ...
Parvovirus B19 can also spread through blood or blood products, though infection through transfusion is rare. In addition, pregnant people who are infected can spread the virus to their unborn child.