Did you know your immune system can be your worst enemy?
Since botulism bacteria cannot survive in oxygen, they form spores that lie dormant until they’re in an oxygen-free environment. For example, the oxygen-free insides of canned goods are prime breeding grounds for botulism.
If you're allergic to dust, chances are what's making you sick is dust mite fecal matter. Find out about dust mites on this Moment of Science.