Article COVID-19 3 Communicable Disease Control 3 Humans 3 communicable disease control controlled study coronavirus disease 2019 3 female 3 human 3 prevention and control Child 2 Female 2 adolescent 2 aged 2 child 2 major clinical study 2 male 2 pandemic 2 Acquired Immunodeficiency Syndrome 1 Adolescent 1 Adult 1 Africa south of the Sahara 1 Behavioral Symptoms 1 China 1 HIV Infections 1 Human immunodeficiency virus infected patient 1 Human immunodeficiency virus infection 1 Infectious Disease Transmission, Vertical 1 Local Government 1 Male 1