Table 1.
Consequence | Symptoms | Infections (%) |
---|---|---|
Inapparent infection without symptoms | None | 72 |
Minor illness | Transient illness; 1–3 d fever, malaise, drowsiness, headache, nausea, vomiting, constipation, or sore throat, in various combinations | 24 |
Nonparalytic poliomyelitis (aseptic meningitis) | Minor illness characterized as fever, sore throat, vomiting, malaise; 1–2 d later stiffness of neck or back; vomiting, severe headache, pain in limbs, back neck (lasts 2–10 d, recovery is usually rapid and complete) | 4 |
Paralytic poliomyelitis | Minor illness for several days, symptom-free period of 1–3 d, followed by rapid onset of flaccid paralysis with fever and progression to maximum extent of paralysis within a few days | <1 |
Data from Sutter RW, Kew OM, Cochi SL, et al. 28 - Poliovirus vaccine—live. In: Plotkin SA, Orenstein WA, Offit PA, editors. Vaccines (sixth edition). London: W.B. Saunders; 2013. p. 598–645.