Table 5.

Nucleic acid testing of SARS‐CoV‐2 RNA in children with COVID‐19

Author	JournalRef.	Case number (N)	Time from illness onset to testing positive for SARS‐CoV‐2 nucleic acid testing in different types of specimens, d			The duration of SARS‐CoV‐2 shedding in different types of specimens, d
			Nasal and pharyngeal swab	Sputum	Fecal	Respiratory swabs	Anal swab	Stool
Dong et al	Pediatrics 9	2143	2 (0‐42)	N/A	N/A	N/A	N/A	N/A
Wang et al	Chin J Pediatr 13	31	N/A	N/A	N/A	11 (7‐23)	N/A	N/A
Cai et al	Clin Infect Dis 14	10	N/A	N/A	6 (3‐13)	12 (6‐22)	N/A	20 (18‐30)
Su et al	Emerg Microbes Infect 16	9	N/A	N/A	N/A	11.2 (8‐16)	N/A	N/A
Wei et al	JAMA 18	9	1‐3	N/A	N/A	N/A	N/A	N/A
Liu et al	N Engl J Med 19	6	4.7 (3‐5)	N/A	N/A	7.5 (5‐13)	N/A	N/A
Cai et al	Chin J Pediatr 20	1	1	N/A	N/A	12	N/A	N/A
Zhang et al	Chin J Pediatr 21	1	1	N/A	N/A	10	N/A	>14
Ji et al	World J Pediatr 22	2	1.5	N/A	N/A	N/A	N/A	N/A
Zhang et al	Chin J Contemp Pediatr 23	2	2	N/A	N/A	10	N/A	N/A
Wang et al	Chin J Contemp Pediatr 24	1	7	N/A	N/A	3	5	N/A
Zhao et al	Zhejiang Med J 25	1	N/A	5	N/A	17	>20	>20
Zeng et al	Chin J Pediatr 26	1	8	N/A	N/A	N/A	N/A	N/A
Zhang et al	World Latest Med Info 27	1	1	N/A	N/A	7	N/A	N/A
Zhang et al	J Med Virol 28	3	7 (1‐14)	N/A	N/A	11 (11‐14)	N/A	37 (34‐43)
Zeng et al	JAMA Pediatr 29	3	2	N/A	N/A	4	5	N/A
Xing et al	medRxiv 30	3	N/A	N/A	N/A	13	N/A	30 (23‐33)
Chen et al	Chin J Pediatr 31	1	14	N/A	N/A	N/A	N/A	N/A

Abbreviations: COVID‐19, coronavirus disease 2019; SARS‐CoV‐2, severe acute respiratory syndrome coronavirus 2.