1954 Johannesburg outbreak

During an outbreak of poliomyelitis in Johannesburg from August 1954 to March 1955, there were fourteen reported cases of atypical poliomyelitis. |title= |title=== Onset == |title= |title=Onset was typically abrupt, often with severe headache. |title= |title=== Symptoms == |title= |title=Symptoms included: |title= |title=* No fever or low-grade fever. |title=* Stiffness of the neck and back |title=* Myalgia and muscle weakness |title=* Facial weakness |title=* Paraesthesia in some cases |title= |title=== Findings == |title= |title=* Normal blood |title=* Normal or slightly raised sedimentation rate |title=* Normal cerebrospinal fluid pressure (below 50 mg. %) |title=* Negative for poliovirus, Coxsackie, Rickettsia, and infectious mononucleosis |title= |title=== Epidemiology == |title= |title=The youngest was eight years of age and the oldest, 47, with the majority of patients in their 20s and 30s. Seventy-two percent of cases were female. |title= |title=== Prognosis == |title= |title=In three cases, there was relapses within weeks of discharge from the hospital. |title= |title=== See also == |title= |title=*Epidemic myalgic encephalomyelitis |title=*List of myalgic encephalomyelitis and chronic fatigue syndrome outbreaks |title= |title=== References == |title= |title= |title= |title= |title=