What can make humans sick?
pets influenza vacations dreams viruses Pesticides microorganisms disease
A B C D E F G H
Tens of millions of Americans get sick every year from bad food.
microorganisms can make humans sick
What can make humans sick? (A) pets (B) influenza (C) vacations (D) dreams (E) viruses (F) Pesticides (G) microorganisms (H) disease