Immunisation and Countermeasures Division, London, United Kingdom.
Thomas Waterfield, Centre For Experimental Medicine, Wellcome Wolfson Institute of Experimental Medicine, Queen's University Belfast, Belfast, United Kingdom.
Clin Infect Dis. 2021 Jul 1;73(1):e260-e263. doi: 10.1093/cid/ciaa1737.
We measured serum SARS-CoV-2 antibodies in 215 children of healthcare workers to estimate secondary attack rates. Twenty-one families had a parent with confirmed COVID-19. There was strong evidence of family clustering (P < .001): 20/21 (95.2%) children were seropositive in 9 families and none of 23 children in 12 other families.
我们测量了 215 名医护人员子女的血清 SARS-CoV-2 抗体,以估计二次攻击率。21 个家庭有确诊 COVID-19 的父母。有强有力的家庭聚集证据(P<.001):在 9 个家庭的 21 名儿童中,有 20 名(95.2%)呈血清阳性,而在 12 个其他家庭的 23 名儿童中均无阳性。