Lassa virus (LASV) genome sequences have revealed that the although the virus was only discovered in 1969, it originated more than a thousand years ago in present-day Nigeria and continues to undergo significant evolutionary change, according to a National Institutes of Health (NIH)–funded study yesterday in Cell.
The man was hospitalized after returning from West Africa and died last night from a Lassa virus infection.
Infection with Clostridium difficile ribotype 027 independently predicts severe disease and mortality, but demographic and clinical factors are stronger predictors of severe disease, according to a study yesterday in Clinical Infectious Diseases.
Minnesota health officials diagnosed Lassa fever in a man who had traveled to West Africa.