How Common Is Miscarriage After Fifth Disease?
In rare cases, a miscarriage after fifth disease can occur. It appears that miscarriages happen in less than 5 percent of all women who are infected with parvovirus B19 while they are pregnant. A miscarriage after fifth disease appears to be most common during the first trimester. Such a miscarriage is most commonly due to nonimmune hydrops fetalis, a condition which causes severe anemia (low red blood cells) and congestive heart failure.