Table 3.

Difference in immune response and related parameters between asymptomatic and, moderate and severely symptomatic patients of SARS-CoV-2.

Parameters	Asymptomatic	Moderate	Severe	References
Monocyte count	NS	NS	NS	Li et al. (2020), Hadjadj et al. (2020), Jiang et al. (2020)
Neutrophil count	NS	NS	NS	Jiang et al. (2020); AlJishi et al., 2021; Hadjadj et al. (2020)
	Low	High		Sharma et al. (2020)
Neutrophil percentage	Low	High	Very high	Zheng et al. (2020), Lucas et al. (2020), Schulte-Schrepping et al. (2020)
Lymphocyte percentage	High	Low	Very low	Zheng et al. (2020); Lucas et al. (2020)
Lymphocyte count	High/Normal	Low	Very low	Han et al. (2020); Jiang et al. (2020); Zheng et al. (2020); Hadjadj et al. (2020); Sharma et al. (2020)
	Low	High		Ma et al. (2020); Li et al. (2020)
CRP	Low	High	Higher	Jiang et al. (2020); Zheng et al. (2020); AlJishi et al., 2021; Zeng et al., 2020
IL-6	Low	High	Very high	Zheng et al. (2020)
IL-1β		N.S	N.S	Lucas et al. (2020)
	Low	High		Chi et al. (2020)
IL-18	Low	High	Very high	Lucas et al. (2020); Chi et al. (2020)
IFN-α	High	High	N.S	Lucas et al. (2020); Trouillet-Assant et al. (2020)
IFN-γ	Low	High	Higher	Lucas et al. (2020); Villalba et al. (2020)
	NS	NS		Chi et al. (2020)
Abnormalities in chest CT	Absent	Low prevalence	High prevalence	Zheng et al. (2020); Yu et al. (2020)
Bilateral pneumonia	Low	Low prevalence	High prevalence	Li et al. (2020); Ma et al. (2020)
Dyspnea	Absent	Low prevalence	High prevalence	Jiang et al. (2020); Ding et al. (2020)
Hypoxia	Absent	Low prevalence	High prevalence	Zheng et al. (2020)

NS ~ non-significant.