The COVID-19 pandemic originated in Wuhan city of China and invaded the whole world of few months it became a major disease burden for the whole world within a few weeks. The disease is still not fully understood and created a worldwide panic due to non-availability of definitive treatment option. In spite of intense rigorous research, novel diagnostic approaches , latest drug trials, prevention remains the mainstay to avoid any health complications and limit the spread. Strategies were designed by healthcare experts to create awareness to prevent transmission. Quarantine and isolation deteriorates mental health in certain individuals it causes irritation, depression , anxiety and their mental health problems thus proper counselling should be done for such individuals. It also causes financial loss and there is a lot of social stigma surrounding it. Managing mental health plays a key role during isolation or during quarantine. Social media has also been essential in creating awareness related to this pandemic. Apps like Arogya Setu app used in India enhances safety of the population, gives proper data about high risk areas. Also many apps have been used for hospital bed allocation and online drug supply during this pandemic This review article focussed on transmission and preventive measures for COVID-19.