The IUCN Bat Specialist group has produced some guidance for cavers, bat handlers, and underground workers on contact with bats during the pandemic. This is a living document so will be updated regularly.
We should note here – this guidance is to protect bats from cavers who might be infected – not the other way around! Another caveat is that the guidance has been designed from an international standpoint – some specific details might not apply to British cavers, but the essential message is common sense: leave bats alone, and don’t go caving if you have tested positive for Covid-19.
The full publication and detailed guidance are here
BCA Conservation and Access Officer