<prompt> Which of the following vaccines can be administered to a patient with known anaphylactic reactions to eggs?Haemophilus influenzae type B vaccineInfluenza vaccineMeasles vaccineMumps vaccine  <response>: Haemophilus influenzae type B vaccine is not an egg based vaccine and is safe to administer to a patient with a history of anaphylactic reactions to eggs. Influenza, measles, mumps, and yellow fever vaccines are eggbased. Vaccines often contain materials other than the active-immunizing antigens, such as preservatives, antibiotics e.g., neomycin, streptomycin to prevent bacterial overgrowth, adjuvants to enhance immunogenicity, and stabilizers. Patients who are allergic to neomycin should not receive the measles-mumps-rubella MMR and oral polio vaccines. Patients who are allergic to streptomycin should not receive the live or the killed polio vaccine. 