A toddler who is started eating cat food is diagnosed with toxacara. A man suffers complications from diverticulitis when ESBL E. coli escape through his perforated colon. A New Mexico man is infected with bubonic plague.
A young boy's nose is invaded by a bacterium after swimming in a lake; A model's breast implant become infected with aspergillus niger; A young woman's lungs are infected with a fungus.
A traveler to South America picks up a case of cutaneous leishmaniasis; A man contracts rat bite fever from his pet rat; A young boy with valley fever.
An ovarian teratoma causes a woman to hallucinate and exhibit strange behavior; A young boy is infected with a flu virus that attacks his muscles causing the tissue to break down; A man having gastrointestinal problems is suffering from blastocystis hominis parasite.
A teenager's hand is infected by a bacterium from her family's aquarium; A man aspirates the pull tab from a soft drink can; A young man has meningitis from rat lung-worms that have traveled to his brain.
A pregnant teacher is blindsided by excruciating bouts of diarrhea, and to her horror she soon finds blood in the toilet. Can doctors find the invader, and save her baby's life before it's too late? Then, a truck driver nearly goes blind from a parasite.
A pregnant woman goes into a coma when she is infected with acinetobacter baumannii; A young woman has roundworms living in her lungs; A 15-year-old girl suffering for weeks from headaches is later found to have had rabies.
An infant sufferers sever throat damage after swallowing a button battery; A young woman's brain has been infected with strep virus; A woman picks up dengue fever on a vacation.
A toddler is infected with meningococcal disease caused by a bacterium; After surgery for an abdominal tumor, doctors accidentally leave a 13-inch retractor inside a patient; A seven-year-old boy is infected with a brain amoeba.
A young art student has a clogged jugular vein causing Lemierre's syndrome; A young woman suffers from Lyme disease and babesiosis; A woman has recurring infections after a sponge is left behind from a previous biopsy.
