OPV stands for which vaccine?

• A. Oral polio vaccine
• B. By mouth
• C. Penicillin
• D. Gestational age (OB)

Answer: (A)

The main idea here is understanding vaccine acronyms. OPV stands for Oral Polio Vaccine. The word parts show what it is and how it’s given: “Oral” indicates the route of administration, “Polio” identifies the disease it protects against, and “Vaccine” confirms it’s a preventive immunization. This makes it the best answer because it matches the acronym exactly. The other choices aren’t vaccines: “By mouth” describes a route, not a product; “Penicillin” is an antibiotic; and “Gestational age (OB)” is an obstetric term.