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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 are Measles, Mumps, Rubella and Varicella and what are the complications of these diseases? These four diseases are caused by viruses. Measles, mumps and rubella are spread by contact with nose and throat secretions such as by coughing and sneezing. Varicella can be spread...

What are measles, mumps and rubella, and what are the complications of these diseases? These three diseases are caused by viruses. Measles, mumps and rubella are spread by contact with nose and throat secretions such as by coughing and sneezing. Measles (red measles or rubeola)...

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...

Diphtheria is caused by bacteria that infect the nose and throat. These bacteria release a poison that may cause breathing problems due to the throat closing over as a result of a grayish membrane developing. In addition, heart failure and paralysis may occur. The bacteria that...