Laid up and Laid low

Laid up adjective - Ill and usually confined.

Laid low and laid up are semantically related. In some cases you can use "Laid low" instead an adjective phrase "Laid up".

Laid low adjective - Put out of action (by illness).

Laid up and laid low are semantically related. Sometimes you can use "Laid up" instead an adjective phrase "Laid low".