Infections that commonly cause high eosinophil levels (eosinophilia), especially in travelers, include certain parasitic infections. According to the provided reference, acute schistosomiasis and infections with other flukes are frequently associated with both fever and eosinophilia.
Infections and Eosinophilia: A Closer Look
Eosinophils are a type of white blood cell that play a role in the immune system. Elevated levels often indicate an immune response to certain infections, particularly parasitic infections.
Here’s a breakdown of infections associated with high eosinophils:
- Schistosomiasis: This is a parasitic disease caused by blood flukes (trematodes) of the genus Schistosoma. Acute schistosomiasis is often associated with high eosinophil counts.
- Other Fluke Infections: Various other fluke infections can also trigger eosinophilia. These flukes can infect different parts of the body, such as the liver, lungs, or intestines.
It's important to note that while parasitic infections are a common cause, other factors, like drug reactions, can also lead to elevated eosinophil levels. Therefore, a comprehensive evaluation is necessary to determine the underlying cause.
