IMMUNE-SYSTEM - Strain-specific Lyme disease immunity lasts for years

Lyme disease, if not treated promptly with antibiotics, can become a lingering problem for those infected. But a new study led by researchers from the University of Pennsylvania has some brighter news: Once infected with a particular strain of the disease-causing bacteria, humans appear to develop immunity against that strain that can last six to nine years ...

http://www.sciencedaily.com/releases/2014/04/140402110029.ht