Enterovirus B includes coxsackievirus B1,2,3,4,5,6; coxsackievirus A9; echovirus 1-33 and enterovirus B69-113. Coxsackie B viruses are found world wide and can cause myocarditis (inflammation of the heart); pericarditis (inflammation of the sac surrounding the heart); meningitis (inflammation of the membranes that line the brain and spinal cord); and pancreatitis (inflammation of the pancreas). The Coxsackie B viruses are also reported to cause a spastic paralysis due to the degeneration of neuronal tissue and muscle injury. Infections usually occur during warm summer months with symptoms including exanthema, pleurodynia, flu-like illness consisting of fever, fatigue, malaise, myalgia, nausea, abdominal pain and vomiting. Echoviruses are a cause of many of the nonspecific viral infections that can range from minor illness to severe, potentially fatal conditions such as aseptic meningitis, encephalitis, paralysis and myocarditis. It is mainly found in the intestine, and can cause nervous disorders. Type B enteroviruses are responsible for a vast number of mild and acute infections. They have been reported to remain in the body causing persistent infections contributing to chronic diseases such as type I diabetes.