False-Positive Monospot in a Returning Traveler with Dengue Fever.

The heterophile antibody (Monospot), initial test of choice for Epstein-Barr virus (EBV)-associated infectious mononucleosis, is both sensitive (70-92%) and specific (96-100%). False positives have been demonstrated in cases of viral hepatitis, human immunodeficiency virus, leukemia, lymphoma, pancreatic cancer, systemic lupus erythematosus, and rubella. We present a case of a 46-yr-old male who developed fever, chills, headaches, myalgia, fatigue, and photophobia 1 d after returning from the Philippines.

Sickle Cell Trait Complicated by Acute Rhabdomyolysis in Military Personnel: A Case Report.

Sickle cell trait, a trait known to be protective against falciparum malaria, is prevalent in the African American community. Unlike true sickle cell disease, sickle cell trait is currently not a disqualifying condition for military service. In the case below, we describe an occurrence, from Logar Provence, Afghanistan (2,072 m above mean sea level), of exertional acute rhabdomyolysis in an American service member known to be a sickle cell trait carrier.

A case of tick-bite-induced red meat allergy.

Delayed hypersensitivity disorders and food allergies are often challenging for the clinician and patient alike. A recent discovery of an IgE antibody specific to galactose-α-1,3-galactose, which is a carbohydrate abundantly expressed on cells and tissues of beef, pork, and lamb, adds one more tool to aid the clinician in making the appropriate diagnosis. A link has been discovered between the bite of the Lone Star Tick (Amblyomma americanum) and the development of sensitivity to galactose-α-1,3-galactose.