A patient has been diagnosed with meningococcal meningitis at a community living home. When should prophylactic therapy begin for those who have had close contact with the patient?
a) Within 72 hours after exposure
b) Within 24 hours after exposure
c) Within 48 hours after exposure
d) Therapy is not necessary prophylactically and should only be used if the person develops symptoms.
Answer: Within 24 hours after exposure