In developed nations, which of the following are considered endemic diseases, and which are considered sporadic diseases?
Influenza: (endemic or sporadic)
Tetanus: (endemic or sporadic)
Plague: (endemic or sporadic)
Common cold: (endemic or sporadic)
Streptococcal pharyngitis: (endemic or sporadic)
Botulism: (endemic or sporadic)
Pneumonia: (endemic or sporadic)

