The UK had something like 20,000 cases the other day.
Something I have never seen the scientists recommend is a 15 extreme lockdown.
Given the virus has a life span of fewer than 14 days, it would be a quick way to reduce R rate.
Having an extreme lockdown of 14 days, 2-3 times per year would be more effective than long lockdowns, that many people choose not to follow anyway. It would be easier for businesses to manage 6 weeks spread over 1 year.
With martial law, they could enforce the lockdown. Food deliveries could even be taken over by the army, to try to ensure people do not need to leave their homes.
2 weeks locked at home is tough, but it would save more lives and do less damage to the economy. It would be easier to implement in first world countries.
This would reduce R-rate and allow for effective contact tracing by identifying new cases, and who these people have been in contact with. (typically same house, building, set of flats etc).
If the vaccine was ready, the army and police could take it to prevent them being mass spreaders- along with the medical staff.