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| haemophilus influenzae type b vaccine (A vaccine for immunization against serious infections caused by a type of bacteria called Haemophilus influenzae type b, such as meningitis and pneumonia) | |||
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| haemophilus influenzae type b vaccine (A vaccine for immunization against serious infections caused by a type of bacteria called Haemophilus influenzae type b, such as meningitis and pneumonia) | |||