Table 2.

Summary of current case series and other reported cases of detection antibody SARS-CoV-2 in human breast milk from the review of the literature. (NT): Not tested.

Study	Maternal breast milk		Infant serum	Throat swab RT-PCR of Infant	Additional information
	IgA antibody SARS-CoV-2	IgG antibody SARS-CoV-2	IgG antibody SARS-CoV-2
Dong et al. [36]	Positive	Positive	Positive	Negative
Kauelen et al. [44]	Positive	NT	NT	NT
Yu et al. [46]	NT	Positive	Positive	Positive	There are close contact between mother and baby when the mother has a symptom of COVID-19
Zhu et al. [49]	NT	NT	Positive	Negative