Yeah, keep telling him to get naps and keep the fluids going. He has 2 of the shots, but can't get the booster until he is healthy again, since vaccines are preventive not curative. He is in a high risk group, but so far seems to be improving slowly.That sucks big time. Hope he takes the time and rest he needs to get fully better.
People out there who can get the vaccine and haven't yet, please do so and save yourselves this grief.