3 Most Common Respiratory Tract Infection Causes in Humans

Respiratory Tract Infection Causes
Respiratory Tract Infection Causes

Respiratory Tract Infection Causes in Humans

Respiratory tract infections causes by viruses, bacteria, or other organisms. Secondary bacterial infection can also occur in people with upper respiratory tract infection and below.

Respiratory tract infections can be spread by air or touch. You can catch an infection when inhaling air containing splashes from a sneezing or coughing patient. Infections can also be contagious if you have previously touched the nose or eyes and then touched the surface of an object, which then the other person touched the object. In addition to residence, transmission of respiratory infections occurs in public facilities, such as at school and day care, so the level of hygiene in this area needs to be kept as good as possible.

Here are the types of respiratory infections and viruses that cause it.

  1. Upper respiratory tract infections, most of these cases are caused by coronavirus and rhinovirus infections. Other viruses that may contribute to upper respiratory tract infections are adenovirus, coxsackieviruses, myxovirus, and paramyxovirus (parainfluenza, respiratory syncytial virus).
  2. Lower respiratory tract infections can be caused by bacteria and viruses. Viruses that cause respiratory infections are influenza A, human metapneumovirus (hMPV), varicella-zoster virus (VZV) or chicken pox, and respiratory syncytial virus (RSV) viruses. These viruses are the most common cause of inpatient cases in children. In addition to viruses, bacteria can also cause infections of the respiratory tract. Some of these bacteria include H. influenza, streptococcus pneumonia, klebsiella pneumonia, staphylococcus aureus, various anaerobic bacteria, and enterobacteria species such as Escherichia coli. Streptococcus pneumonia bacterial infection is the bacteria contributor most cases of pneumonia in patients with respiratory tract infections. Bacteria Mycobacterium tuberculosis can also infect the lower airway and cause tuberculosis.
  3. Unclassified organisms can also cause infections of the respiratory tract, namely mycoplasma pneumoniae, legionella pneumophila, chlamydophila pneumonia, and coxiella burnetii.

Children are generally very susceptible to respiratory infections and viruses are more likely to stay in their bodies. This is because the immune system of children who have not perfect.

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