Final answer:
Spontaneous clearance of HCV in infancy is not common; most cases of perinatal infection lead to chronic carriage of the virus.
Step-by-step explanation:
The question asks whether spontaneous clearance of HCV (Hepatitis C virus) in infancy is common in cases of perinatal infection. The correct answer is b) False. While some cases of HCV may resolve spontaneously, studies have shown that 75%-85% of individuals infected with HCV become chronic carriers, and this likelihood is significantly higher in infants compared to adults. Chronic HCV infection can persist for years and cause liver damage, often without prominent symptoms. This evasion of the immune system contributes to the chronicity of the disease. It's important to note that new medications have improved the treatment of HCV, offering a potential cure for many patients.