An 11-year-old boy is brought to his pediatrician by his parents for the routine Tdap immunization booster dose that is given during adolescence. Upon reviewing the patient’s medical records, the pediatrician notes that he was immunized according to CDC recommendations, with the exception that he received a catch-up Tdap immunization at the age of 8 years. When the pediatrician asks the boy’s parents about this delay, they inform the doctor that they immigrated to this country 3 years ago from Southeast Asia, where the child had not been immunized against diphtheria, tetanus, and pertussis. Therefore, he received a catch-up series at 8 years of age, which included the first dose of the Tdap vaccine. Which of the following options should the pediatrician choose to continue the boy’s immunization schedule?
AA single dose of Td vaccine at 18 years of age
BA single dose of Td vaccine now
CNo further vaccination needed
DA single dose of Tdap vaccine now
EA single dose of Tdap vaccine at 13 years of age
Two months after giving birth to a boy, a 27-year-old woman comes to the physician with her infant for a well-child examination. She was not seen by a physician during her pregnancy. Physical examination of the mother and the boy shows no abnormalities. Laboratory studies show elevated titers of hepatitis B surface antigen in both the mother and the boy. Which of the following statements regarding the infant's condition is most accurate?
AHepatitis B e antigen titer is likely undetectable
BChronic infection is unlikely
CLifetime risk of hepatocellular carcinoma is low
DSignificant elevation of transaminases is not expected
EThe viral replication rate is low
A 28-year-old woman gives birth to a 2.2 kg child while on vacation. The mother's medical records are faxed to the hospital and demonstrate the following on hepatitis panel: hepatitis B surface antigen (HbsAg) positive, anti-hepatitis B core antigen (anti-HbcAg) positive, hepatitis C RNA is detected, hepatitis C antibody is reactive. Which of the following should be administered to the patient's newborn child?
AHepatitis B vaccine, ledipasvir/sofosbuvir
BHepatitis B IVIG and vaccine
CHepatitis B IVIG, hepatitis B vaccine and ledipasvir/sofosbuvir
DHepatitis B IVIG now, hepatitis B vaccine in one month
EHepatitis B vaccine
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