Table 1.

Summary of the features of two women with COVID-19

Clinical characteristics	Patient 1	Patient 2	SARS-CoV-2 RNA testing	Patient 1		Patient 2
Age (years)	38	42	Sample type	Sample date	Result (cycle threshold per target)	Sample date	Result (cycle threshold per target)
Gestational age on admission	34 weeks, 4 days	37 weeks, 3 days	Breast milk 1	March 31, 2020	Positive (E: 34.3; RdRP: 37.1; N: 36.7)	March 29, 2020	Negative
Onset to delivery (days)	8	8	Breast milk 2	April 1, 2020	Positive (E: 33.8, RdRP: 34.3; N: 37.3)	March 30, 2020	Negative
Complications	Foetal distress	None	Breast milk 3	April 2, 2020	Negative	March 31, 2020	Negative
Signs and symptoms			Breast milk 4	April 3, 2020	Positive (E: 37.3; RdRP: 36.1; N: 38.3)	April 1, 2020	Negative
Fever	Yes	No	Breast milk 5	April 4, 2020	Negative	April 2, 2020	Negative
Myalgia/Arthralgia	No	No	Breast milk 6	April 6, 2020	Negative	April 5, 2020	Negative
Cough	No	Yes	Amniotic fluid	March 28, 2020	Negative	March 26, 2020	Negative
Dyspnoea	Yes	No	Cord blood	March 28, 2020	Positive (E: 28.3; RdRP: 29.9; N: 28.9)	March 26, 2020	Negative
Sore throat	No	No	Placental tissue	March 28, 2020	Positive (E: 22.6; RdRP: 23.5; N: 23.5)	March 26, 2020	Negative
Chest pain	No	No	Neonatal throat swab 1	March 28, 2020	Negative	March 26, 2020	Negative
Diarrhoea	Yes	No	Neonatal throat swab 2	March 31, 2020	Negative	March 28, 2020	Negative

Laboratory characteristics	Patient 1	Patient 2

White blood cell count (×10⁹ cells/L)	5.37	12.92
Lymphocyte count (×10⁹ cells/L)	0.64	0.80
Platelet count (×10⁹ cells/L)	106	405
C-reactive protein concentration (mg/L)	91.3	125.7
Treatments after delivery	Patient 1	Patient 2
Supplemental oxygen	Yes	No
Lopinavir/ritonavir	Yes	Yes
Azithromycin	Yes	Yes
Hydroxychloroquine	Yes	Yes

E, envelope protein gene; RdRP, RNA-dependent RNA polymerase gene; N, nucleocapsid protein gene.