Upper Respiratory System
Nose, throat and associated structures: Sinuses, ducts, middle ear.
Lower Respiratory System
Larynx, trachea, bronchial tubes, and alveoli.
Streptococcal Sore Throat
Complications : Otitis media - Middle ear infection.
Pseudomembrane - grayish green membrane
Transmitted by : inhalation of droplets
Transmitted by : Mucus droplets, direct contact, and fomites.