Documents Viruses and Prions. RNA Viruses Picornaviruses Poliomyelitis –Fecal-oral and pharyngeal...

Viruses and Prions RNA Viruses Picornaviruses Poliomyelitis Fecal-oral and pharyngeal transmission Attacks NS and can cause paralysis Vaccine has nearly eradicated the disease…

Documents Digestive System Infections

Esophagus and stomach are relatively bacteria free Mouth Different Streptococci in different micro environments Teeth colonized by bacteria forming biofilmâplaque 1012 bacteria…