COVID-19 496 pandemic 495 human 438 Humans 377 Pandemics 314 coronavirus disease 2019 265 Article 253 SARS-CoV-2 253 female 165 adult 149 male 136 epidemiology 116 Female 103 controlled study 92 Pandemic 85 major clinical study 80 COVID-19 pandemic 79 Adult 76 Male 75 United States 69 adolescent 61 middle aged 60 aged 59 child 59 cross-sectional study 57 Adolescent 55 questionnaire 51 Child 50 Severe acute respiratory syndrome coronavirus 2 46 prevention and control 42