There are two different parts of the respiratory system that can be affected by viruses: the upper and lower respiratory tracts. The upper part of the respiratory tract includes: — The nose ...

Respiratory infections are common illnesses. Children are especially likely to get them. They can affect your upper or lower respiratory tract. ...

Upper respiratory infections affect your throat and sinuses. These include colds, sinus infections, and sore throats. Lower respiratory infections usually last longer and are more serious.

Your upper respiratory (UR) tract is made up of your nose, mouth, sinuses, upper throat, and voice box (larynx). Your lower respiratory (LR) tract includes your windpipe (trachea), bronchial tubes ...

The human coronavirus NL63 has only recently been shown to cause both lower and upper respiratory tract infections--some potentially severe, especially in children and the elderly.

HMPV is a respiratory virus that causes both upper and lower respiratory tract infections, with symptoms similar to the common cold. The Human Metapneumovirus (hMPV) is raising concerns in India, ...

Common RSV symptoms in many people include "a runny nose, cough, sneezing and fever – basically mild cold-like symptoms that are mostly contained to the upper respiratory tract," says Dr. Alison ...

The upper respiratory tract microbiota also influences susceptibility to chronic respiratory conditions, ... with higher diversity and lower overall bacterial density in older individuals.

Human Metapneumovirus (HMPV) is a respiratory virus known to cause both upper and lower respiratory tract infections. While it usually results in mild cold-like symptoms in healthy adults, the ...

Objective Limited data imply an inverse relationship between physical activity or fitness level and the rates of upper respiratory tract infection (URTI). The purpose of this study was to monitor URTI ...