From doing manicures to delivering groceries. From cleaning homes to sewing masks. The coronavirus pandemic has devastated sectors of the economy dominated by immigrant labor: Restaurants, hotels, office cleaning services, in-home childcare and hair and nail salons, among others, have seen businesses shuttered as nonessential. This has forced some immigrants _ many of them in a dire economic situation _ to branch out to new jobs or adapt skills to meet the demands generated by the coronavirus. Those immigrants who are able to find new jobs say the possibility of catching the virus makes them nervous.