Covid-19: a comprehensive review of a formidable foe and the road ahead.

The scale of the outbreak has brought the governments, health-care professionals, and scientists around the world under tremendous pressure to devise control strategies and develop novel prevention measures. While availability of vaccine for COVID-19 may take time, the disease may be contained through hand hygiene, physical distancing, travel restriction, and aggressive steps such as 'lockdown.' Clinical trials at different phases are ongoing across different countries to expedite the development of effective drugs and vaccine to overcome the pandemic.