Prognosis

Due to the advent of modern mechanical ventilation in the 1940s, mortality rates have decreased from 60% to 70% in the early 20th century, to the current rate of 3% to 5%.[67][68] The mortality rate for infant botulism is <1%.[25] Although muscle strength improves greatly in the first 3 months of recovery from botulism, patients continue to show an increase in strength and endurance for up to 1 year after disease onset.[64] Relapse of infant botulism is rare but has been reported in infants despite complete resolution of symptoms.[69] Therefore, close follow-up is important during the first month after discharge. Long-term consequences of botulism include fatigue, weakness, dyspnea on exertion, and impaired psychosocial well-being.[5]

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