Why do people who are sick with swine flu not stay home??

Honestly I don't understand or comprehend why people who have a potentially deadly virus are going around sometimes infecting people with compromised immune systems and feel no moral or ethical need to stay at home till they are better. It's just wrong-I wonder why these people don't stay at home? I just had someone with it come into my store-of course I won't be sick, I take like echinacea, zinc & coldFX stuff and others and I clean everything so this I just don't get---*rolls eyes & grumbles*
Updates
+1 y
K one person said I am American; No, I am Canadian-it says in my profile and yes I am aware of such things as viruses and they aren't easily eradicated as bacteria. I take sciences, that's actually my major in university, and I took a course in microbi
Updates
+1 y
my point was that it can spread, individuals need to be quarantined in some cases as in prior instances of disease breakouts to prevent an epidemic or pandemic from occurring-it can be a matter of life & death-I agree with wind, trees need to stand to stay
Updates
+1 y
but we're talking about microbes that can not be seen and can inoculate individuals through respiration possibly or other means, and those who have issues with immune system, well an idiot like the one who walked into my store could kill them unintentiona
Updates
+1 y
-ally. if you have ever volunteered in a hospital which I have, even if you have a cold or flu, you are ideally to stay at home and rest till you get better. it's just not only an issue of sanitation, but also consideration ;)
Updates
+1 y
k I'm sorry if a few people misunderstood. I don't like quarantining people but if you're sick and got the swine flu, it's considerate to not go out there and spread it to everyone else because there have been people who have died from it..k :D
Why do people who are sick with swine flu not stay home??
Post Opinion