The particular medicine that you're considering can
be lethal or debilitating in certain instances.
Prevention is always good.
Limit your travel, stay home, shop online for home
deliveries; set aside a safe location where you want
your items to be left. Get a home security system, also useful for watching for deliveries.
Use your computer to track when your items are going
to be delivered.
Get a decent face mask and rubber gloves, maybe a
polyester coverall, rubber boots and masking tape.
I'm certain you know how to use these.
On a more advanced thread, what about something like
Tesla's biological filter, that it demonstrated some
years ago, adapted for use within the home.
Decades prior to this I stopped traveling outside
of my district. As I support the Green initiative I've
never owned a motor vehicle and seldom travel by taxi.
I wear a silicone rubber face mask, with filters, when I fill the lawn mower with petrol, or when I obtain petrol. Which isn't very often; I'm considering alternatives, like a lamb,goat or guinea pigs.
An electric lawnmower appears to be a possibility,
however I'm wondering about a possible electrical
radiation risk; 300watts, or more of power with unknown shielding .