No RIDDOR hasn’t been amended in anyway, so the reporting rules remain the same.

Not RIDDOR the isolation for most would be precautionary rather than in consequence of.

Even for those under 70 self-isolating would still not be RIDDOR as it would be impossible to prove the virus was contracted at or in connection with work.

Just to clarify: Covid 19 is a NOTIFIABLE disuse under the Public Health (Control of Disease) Act 1984 and Public Health (Infectious Diseases) Regulations 1988. This means that if a doctor SUSPECTS that someone has such a disease he must report it to the PHE (or equivalent). They don’t need to wait for a definitive test result. This has nothing to do with RIDDOR.

There is a requirement, in RIDDOR, to report occupational diseases that are acquired due to work activities. So if someone is suspected of having been infected by Covid 19 virus, who works in a medical lab testing for the virus that would be RIDDOR reportable. On the other hand if it looks like they simply caught it from a fellow employee or on the train it is not reportable under RIDDOR.