Microbiology About parvovirus B19 all are true except: A Spread by respiratory route B Has affinity for erythrocyte progenitor cells C Causes transient aplastic crisis D Transplacental transfer occurs in only 10% of cases 💡 Explanation About parvovirus B19 all are true except: ✓ Correct Answer: D. Transplacental transfer occurs in only 10% of cases