Differential Diagnosis for Nausea from Ducks
- Single most likely diagnosis
- Avian influenza or other viral infections transmitted from ducks: This is a likely cause as ducks can carry various pathogens that can be transmitted to humans, causing symptoms like nausea.
- Other Likely diagnoses
- Salmonellosis: Ducks can carry Salmonella bacteria, which can cause nausea, vomiting, and diarrhea in humans if they come into contact with contaminated feces or water.
- Campylobacteriosis: Similar to Salmonella, Campylobacter bacteria can be found in duck feces and cause gastrointestinal symptoms in humans.
- Cryptosporidiosis: This parasitic infection can be transmitted through contact with contaminated water or feces from ducks, leading to nausea, vomiting, and diarrhea.
- Do Not Miss (ddxs that may not be likely, but would be deadly if missed.)
- Avian influenza A (H5N1 or H7N9): Although rare, these strains of avian influenza can be deadly to humans and must be considered, especially if there's a history of close contact with ducks or their environments.
- E. coli infection: Certain strains of E. coli can cause severe gastrointestinal illness, and while less common, transmission from ducks is possible.
- Rare diagnoses
- Histoplasmosis: This fungal infection can be found in bird droppings, including those from ducks. While rare, it can cause systemic illness, including nausea, in immunocompromised individuals.
- Psittacosis: Caused by the bacterium Chlamydophila psittaci, this infection is more commonly associated with psittacine birds but can occasionally be transmitted from other birds, including ducks, leading to flu-like symptoms, including nausea.