San Francisco 49ers nose tackle Ian Williams and cornerback Marcus Cromartie are taking a cue from the ALS ice bucket challenge and going after Lyme Disease.
Lyme disease is a bacterial infection transmitted only by specific species of black-legged ticks. Symptoms are varying and can include fatigue, flu-like symptoms, skin rash, and pain -- among others. Currently, there is no human vaccine, and treatments are limited to antibiotics.