The consolidated results of 26 studies in this meta-analysis showed that 8% of newborns of women with COVID-19 the newborns tested positive in the RT-PCT test in the first 24 hours after birth19-21,29,31-39,41-43,45-47,49-51,53,54,56,57 (Z= -10.581, p<0.001), in 2 studies, 2 of 8 newborns tested positive for IgG19,34 (Z= -1.206, p=0.228), and 3 of 8 newborns tested positive for IgM in two studies19,34 (Z= -0.683, p=0.495) (Table 4 and Supplementary file Figure 14). Here, CD40LG is linked to COVID-19.