Study Chen et al (2020)N = 9, confirmed casesRetrospective study WHO-China Joint Mission (2020)N = 147 pregnant (64 confirmed cases, 82 suspected,1 asymptomatic) Zhu et al (2020)N = 10 neonates, 9 mothers (1 twin)Retrospective study Liu et al (2020)N = 13 confirmed cases (2 < 28weeks)Retrospective study Schwartz (2020)N = 38, confirmed casesReview Chen et al (2020)N = 118, confirmed or suspectedRetrospective study