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What is Varicella and what are the complications of this disease? Varicella is a common and highly infectious disease which causes an irritating blister-like rash. The rash or fluid filled lesions break out in stages on all areas of the body including the scalp and mucous...

What is meningococcal disease and what are the complications of this disease? Invasive meningococcal disease is caused by a bacteria called Neisseria meningitidis (N. meningitidis). There are many different groups or types of this bacteria that can cause disease and each type is...