The three-month-old infant, b in Xiaogan City, Hubei Province , was hospitalized due to fever for 4 hours on January 26, 2020 .The throat swab test was positive
Chronic periodontitis is the most common infectious periodontal disease caused by plaque biofilm. Pili is an important bacterial component of Porphyromonas ging
Since the outbreak of coronavirus disease 2019(COVID-19), the author has been involved in the treatment of COVID-19 in the first line. It is found that some pat