Although the situation has normalised, in some countries insurers exclude cover where travel advisories are elevated.
We do expect that the advisories will be revised shortly but interim here are some leads to insurers who do offer a cost-effective rates despite the advisories
Allianz – download policy
Campbell Irvine in the UK – download policy
In the USA, Sri Lanka travel insurance is offered normally as the advisory level does not state not to travel
Do drop us a line to email@example.com if you need assistance.