The spread of COVID-19 has been an unprecedented challenge for Bangladesh as well as for the rest of the world, and it has placed enormous strain on many health systems, regardless of geography and income level. The SARS-CoV-2 virus, which causes COVID-19, spreads very quickly between people, mainly when an infected person is in close contact with another person. The closer people are for long periods of time, the higher are the risks of transmission, especially in indoor locations, where there is poor or no ventilation.