Why bottled water?
Not in answer to your question but ...
What kind of country STILL can you not drink the water? Everyone drinks bottled water and soft drinks because the water is undrinkable.
Do we really have to wonder WHY the flu is worse in Mexico!
If there was ever an epidemic outbreak, or some other catastrophic natural or unnatural disaster, remember that water from the tap just doesn't happen. It takes an incredible amount of manpower, chemicals and maintenance to deliver that water to your house. If there aren't engineers, or maintenance men or access to the right chemicals because the transportation system has shut down, it means there won't be any running water, hence the need for bottled water. FWIW.
“Why bottled water?”
So that when you and everyone else in your household are laid up with the flu you can hydrate without getting out of bed.
Staying hydrated is critical when you have a fever. It may keep you from cooking your brain.
But . . . but . . . but . . . if I am that sick someone will take care of me — except if everyone in your house is that sick, too. But . . . but . . . but . . . if that happens I can get a doctor or go to the hospital — except if this is a 1918-type influenza the doctors will be just as sick and the hospitals will so crowded they be laying out patients on the floor.
Read some accounts of the 1918 pandemic. It got THAT bad. If we have a true pandemic a la 1918, you will be better off staying at home and staying in bed than doing anything else. Remember, medical services cannot really do anything for you other than let you heal yourself with a virus. Antibiotics may help with secondary bacterial infections, but they do nothing against viruses. Tammiflu apparently helps, but I’d bet that runs out almost immediately.
Bed rest and hydration are about all that can be done until you heal yourself. And stay in bed several days after you start feeling better. Lots of flu victims died exerting themselves after feeling better back in 1918.