# 新型冠状病毒肺炎(COVID-19)与疫苗的非特异性免疫效应:卡介苗(BCG)、脊髓灰质炎疫苗以及麻疹-腮腺炎-风疹联合疫苗(MMR)的相关作用。 This page does not yet have an agent-readable markdown version. Canonical: https://diagnosticdetectives.com/products/covid-19-and-non-specific-actions-of-vaccines-bcg-poliomyelitis-mmr-7