My personal plan is to try and have enough "stored" food for 3 to 7 days per family member. Depending on what day of the month "something" came up around my house, we may have anywhere from two days to three weeks worth of "regular" food in the house.
I also plan on ordering a box of each size of 3M brand 95r face masks. it may cost me $30 or $40 max, and I can keep them forever.
My new opinion is that you never know what "it" might be, when "it" might happen, or where you might be when "it" does, so rather than try and plan for a specific thing, I'm just trying to cover as many bases as I can reasonably think of.
Since you can't plan for everything, I feel that if I'm prepared to avoid and protect regardless of being at home or at work or at the park, and of course, pray, that I should be better prepared to deal with a variety of sitiuations, though I may not have everything I need for one specific situation.