TABLE 3.

The detailed adverse effect.

Author, year	Treatment	The most symptoms reported
		Treatment group	Control group
Zeng et al. (14)	OM-85	Nausea, Thirst	Thirst
Tang et al. (9)	OM-85	Common cold, nausea, abdominal pain, headache	Common cold, headache, dizziness, nausea
Solèr et al. (18)	OM-85	Respiratory system manifestations such as acute exacerbations, tonsillitis, symptoms of influenza, sinusitis
Li et al. (19)	OM-85	Dyspepsia, skin pruritus	Not mentioned
Collet et al. (20)	OM-85	Abdominal with gastroenteritis, miscellaneous, pulmonary and respiratory issues	Miscellaneous, pulmonary and respiratory issues, abdominal with gastroenteritis