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What is a Respiratory Virus?

By J.M. Willhite
Updated: May 17, 2024
Views: 2,471
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A respiratory virus, also known as a respiratory syncytial virus (RSV), is a condition that leads to an infection of the lungs and respiratory system. Spread through both direct and indirect contact with an infected individual, there is a slight risk of complication for certain individuals. Treatment for RSV usually involves the use of over-the-counter medications, though prompt medical attention and hospitalization may be required if severe complications develop.

Entering the body through mucus membranes, such as those located in the eyes and nose, RSV is very contagious and commonly spread through the spittle produced when coughing and sneezing. Transmission of the virus may occur through inhalation and hand-to-mouth contact, so it is essential to cover one’s mouth when sneezing and coughing and avoid hand-to-mouth or hand-to-eye contact after touching a contaminated object. Those who contract a respiratory virus may experience a variety of symptoms that manifest within four to six days following initial exposure.

Adolescents and adults may experience symptoms that resemble those associated with a common cold, including sore throat, congestion, and headache. More severe symptoms may include wheezing, a high fever, and persistent cough. Infants and small children frequently experience more pronounced and severe symptoms, such as rapid, shallow breathing, lethargy, and decreased appetite. Though symptoms generally subside within two weeks, prompt medical attention should be sought for severe symptoms, such as a bluish-color to the skin that is indicative of a lack of oxygen, known as cyanosis.

A diagnosis of a respiratory virus is generally made during a physical examination. The attending physician will use a stethoscope to listen to the individual’s lungs to determine if there are any abnormalities, such as wheezing. Additional tests may include a blood test to determine the presence of bacteria, a chest X-ray, and a laboratory analysis of mucus cultures collected from the nose.

Since the origin of the RSV infection is viral and not bacterial it does not respond to antibiotics. Only when a secondary bacterial infection is present, such as an ear infection, will an antibiotic be prescribed. In most cases, over-the-counter medications are recommended to alleviate the discomfort associated with a respiratory virus, such as throat lozenges and acetaminophen. Individuals with a severe RSV may require hospitalization and the intravenous administration of fluids to prevent dehydration. An artificial breathing machine may be employed to ease the individual’s ability to breathe.

There are several potential complications associated with a respiratory virus. Individuals who experience a migration of the virus to the upper respiratory system may develop bronchiolitis or pneumonia. Very young children, individuals of advanced age, and those with a compromised immune system are at an increased risk for developing upper respiratory complications associated with RSV. Additional complications include the development of asthma, middle ear infection, and an increased susceptibility to further infection.

Respiratory viruses may be prevented by making proactive changes to one’s hygiene and lifestyle habits. Since there is no vaccination for the virus, it is essential that individuals regularly wash their hands, abstain from sharing drinking glasses and eating utensils, and avoid contact with infected individuals to prevent the spread of RSV. Preventive medications may be administered to very young children who are at an increased risk for developing complications associated with the virus.

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