Table 3.

Reported side effects during the GHESKIO oral cholera vaccine, Haiti^*

Reaction	Severity grade 1–2	Severity grade 3–4
Systemic	Grade 1–2	Grade 3
Headache	325	8
Dizziness	100	0
Fever	73	12
Gastrointestinal
Nausea	256	6
Vomiting	107	5
Abdominal pain	145	12
Diarrhea	141	23
Any	1,309 (1.3%)	78 (0.08%)

^*Reported symptoms during 24–48 hours after cholera vaccination. n/N = 1,334/99,867 (data for two doses combined).