URTIs are infections involving the upper respiratory tract. It is one of the most frequent illnesses that affects people of all ages. This is one of the common causes to visit primary care physicians.
UPPER RESPIRATORY TRACT ORGANS
· Nose
· Throat (including larynx and pharynx)
· Tonsils
· Trachea
· Sinuses
3 KNOWN ORGANISMS NOTED
· Viruses – most common
· Bacteria
· Fungi [...]









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