Compare two bacteria with a parasite. Similar gut symptoms do not mean identical organisms or routes.
Read the non-typhoidal illness scope and the different ways Salmonella can reach people.
A species of thousands of serotypes; the non-typhoidal ones are a leading cause of food-related diarrheal illness.
CDC links Campylobacter infection especially to raw or undercooked poultry, among other exposures.
A spiral gut pathogen and one of the most common causes of diarrheal illness, often traced to poultry.
Look for Giardia’s cyst and feeding forms. Its cysts can be swallowed in contaminated water or food.
An intestinal protozoan with a flagellated feeding form and a separate cyst form.
Which profile has a cyst form involved in transmission?
Option: Salmonella enterica
Option: Campylobacter jejuni
Answer: Giardia duodenalis
CDC’s Giardia life-cycle page identifies cysts as the resistant form involved in transmission.
Which profile says people most commonly get infected after eating raw or undercooked poultry?
Answer: Campylobacter jejuni
Option: Giardia duodenalis
Option: Salmonella enterica
CDC says raw or undercooked poultry is the most common route for Campylobacter infection.