Precautionary measures have been implemented throughout the airport to maintain the health and safety of our customers and staff. These measures include hand sanitizer stations around the airport, protective Plexiglas at check-in and immigration counters, thermal temperature screening, social distancing markers and increased levels of cleaning and sanitization in compliance with international standards set out by the relevant authorities.
All the gates and passenger movement areas will be thoroughly disinfected after each arrival.  All the handling agents and other staff who are engaging in the the flight operation in that area are mandated to wear PPE.
Full information from the airport is available here:  https://www.airport.lk/travel_through_BIA/flying_through_sri_lanka