I'd say sinuses it's very common in springtime cuz of all the poly going around and fix multiple people with the symptom with the nose eyes and throat causing watery eyes stuffy nose and scratchy throat. Hope this helps!
Aporia
White blood cells surround and digest bacteria. White blood cells produce antibodies that destroy pathogens. The middle one, I don't know yet, and the ones at the bottom, I'm still figuring out.
The answer is that they use food inspections to reduce food poisoning