SARS-CoV-2 transmission refers to the spread of the novel coronavirus that causes COVID-19 between individuals. Research in this area aims to understand how the virus is transmitted, including through respiratory droplets, aerosols, surfaces, and close contact with infected individuals. This research also looks at factors that can influence transmission, such as mask-wearing, social distancing, ventilation, and vaccination. Understanding SARS-CoV-2 transmission is crucial for developing effective public health strategies to control the spread of the virus and protect individuals from becoming infected.