By Professor Malik Peiris & Professor Kamini Mendis (Lanka-e-News -19.May.2021, 3.00AM) ⋆ The current covid-19 situation in Sri Lanka is grave, and needs swift and strategic intervention ⋆ The strategies of small-area isolation, preventing inter-provincial travel, short and intermittent lockdowns and mild restraints on human movement will not work for the reasons explained in this document ⋆ They argue that even under the most optimistic scenarios, it will be over 6 months before most of the high-risk population receives protection from vaccines across the country ⋆ They call for an immediate countrywide lockdown for at least 14 continuous days as beoing essential to control this critical situation