During a routine pediatric clinic visit, a 2 month old patient will need which vaccines? Select all that apply.

Choice A rationale RV (Rotavirus) vaccine is administered orally as part of the routine immunization schedule, with the first dose typically given at 2 months of age. Rotavirus is a common cause of severe diarrhea and dehydration in infants, and this vaccine is highly effective in preventing severe illness, making it a critical 2-month immunization. Choice B rationale TDaP (Tetanus, diphtheria, acellular pertussis) is the adolescent/adult booster formulation of the tetanus, diphtheria, and pertussis vaccine. It is not used for initial pediatric immunization series. Infants and young children receive the DTaP formulation, which contains a higher dose of diphtheria toxoid for primary immunity. Choice C rationale DTaP (Diphtheria, tetanus, pertussis) vaccine's primary series begins at 2 months of age. This injection provides protection against three serious bacterial diseases. Diphtheria and pertussis (whooping cough) can be particularly life-threatening in infants, making this a cornerstone vaccine at this age. Choice D rationale Hepatitis A vaccine is not typically initiated at 2 months of age. The routine vaccination schedule recommends the first dose of the Hepatitis A vaccine be given between 12 and 23 months of age. Hepatitis A is a viral liver infection generally transmitted through the fecal-oral route. Choice E rationale MMR (Measles, mumps, rubella) is a live attenuated viral vaccine that is typically administered starting at 12 months of age. It is generally not given to infants under 1 year old due to the presence of maternal antibodies, which can interfere with the infant's immune response to the vaccine. Choice F rationale HIB (Haemophilus influenzae type B) vaccine is part of the routine pediatric immunization series, with the first dose recommended at 2 months of age. HIB is a bacterium that can cause severe invasive diseases such as meningitis and epiglottitis, which are serious threats to young infants.