@tiggerbluedevil @mskathleenquinn @andyaschmidt "positive test result and at least one symptom"
It's right there in the article. Reduction of symptomatic disease. Not infection or transmission.
@tiggerbluedevil@mskathleenquinn@andyaschmidt“阳性检测结果和至少一种症状”
就在这篇文章里。减少症状性疾病。不是感染或传播。