I think that except for people with serious symptoms to convalesce at home means, to some degree, that they have been abandoned by the country or the society.
ご質問ありがとうございます。
"I think that"＝「私は～と思う」
"except for people with serious symptoms"＝「重症の人々以外が」
"to convalesce at home means"＝「自宅療法するということは」
"to some degree"＝「ある意味で」
"that they have been abandoned by the country or the society. "=「国や社会から見捨てられたということ。」
ご参考に。
アメリカ合衆国 
