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Doctor insights on: When Is Croup Not Contagious

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How contagious is croup?

How contagious is croup?

LIke a common cold: Croup is caused by a virus and is contagious. To put it in perspective, it is as contagious as a common cold. Good hand washing with soap and water or with hand-gel will decrease the risk of transmission. ...Read more

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Dr. Mark Diamond
260 Doctors shared insights

Croup (Definition)

A description of variety on upper respiratory tract condition in children, including laryngitis, laryngotracheitis, laryngotracheobronchitis, bacterial ...Read more


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Is croup contagious to an adult?

Is croup contagious to an adult?

Yes: Adults can become infected with same virus that caused their child’s croup. However, adults and older children have larger airways, and the illness is usually mild and can seem more like cold. ...Read more

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Is croup contagious to adults? My niece has it she lives upstairs

Is croup contagious to adults? My niece has it she lives upstairs

Yes: Croup is usually triggered by one of several upper respiratory viruses that are all contageous. However, the croup like illness is rather age specific, occuring most fro age 6 m to 6 yr. Older kids or adults tend to have cold like symptoms or laryngitis if they get the germ. If a person has been infected by that virus strain before they would be immune. ...Read more

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I had gotten Croup as a teen and I now get it every year in the fall im 24, is it still contagious when I have it? And will it ever go away?

I had gotten Croup as a teen and I now get it every year in the fall im 24, is it still contagious when I have it? And will it ever go away?

Croup: Not sure why you get "croup" but if you are running fevers with it consider yourself contagious. And since croup is caused by a virus you could spread it just as if you had a cold and could. ...Read more

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How long is parainfluenza / croup contagious?

At least a week: Most viruses follow the same basic pattern. Viral numbers expand exponentially until our immune systems can generate an effective response (fever is the first attempt). Antibody response to viruses takes 3-5 days and peak infectivity is usually the first week. We continue to shed virus for 1-2 weeks after. Respiratory viruses are spread by droplets which can travel up to 4 feet through the air. ...Read more

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How long is croup contagious after steroid?

How long is croup contagious after steroid?

No: Steroid administration does not affect the transmission of croup. Steroids are administered to reduce difficulty breathing associated with croup. They reduce airway swelling caused by edema. ...Read more

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Is croup contagious to adults? My niece has it she lives upstairs and she hugged me hours before she got a fever. Am I at risk

Is croup contagious to adults? My niece has it she lives upstairs and she hugged me hours before she got a fever. Am I at risk

Yes and no: Croup is triggered by several common respiratory viruses that can infect anyone at any age that is not immune. However, the response of each patient is different. Croup is a pattern that involves the rubbery and small airways of kids & primarily emerges in those 6m to 6yr. Older kids and adults tend to have a cold/cough or laryngitis with the same germ. If you had that strain as a kid you are immune ...Read more

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My son started having symptoms of croup 48 hours ago. He was diagnosed by a Dr. Today. His fever is gone now. How much longer will he be contagious?

My son started having symptoms of croup 48 hours ago. He was diagnosed by a Dr. Today. His fever is gone now. How much longer will he be contagious?

Shedding for awhile: Viral shedding, or period of contagiousness, for these types of viruses can last weeks, and are shed through the upper respiratory structures. However, since most of the shedding occurs during the time that the person is feeling very sick and febrile, let your son's behavior and overall appearance be your guide. Most daycares and schools require a 24 hour fever free period (without medications). ...Read more

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How contagious is croup? My 2 yr old and 4 mo old were around child yesterday who was diagnosed last night. What should I look out for?

How contagious is croup? My 2 yr old and 4 mo old were around child yesterday who was diagnosed last night. What should I look out for?

Croup: Look for barking cough, hoarseness and noisy breathing called stridor. Symptoms may be mild to moderate and get worse at night. It is contagious and caused by a virus and is self limiting and can be treated with steroids and in severe cases Epinephrine as well, children with sever cruip may need hospitalisation. ...Read more

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Daughter on methotrexate and my son has bronchitis and croup. Dr says he is contagious so should I find someone to keep my daughter overnight?

Daughter on methotrexate and my son has bronchitis and croup. Dr says he is contagious so should I find someone to keep my daughter overnight?

Viral infection: Difficult to answer and very complicated. She has probably already been exposed. Methotrexate effects primarily neutophils which are seldom involved in fighting viral infections, which cause bronchitis and croup, unless this is pertussis (whooping cough). ...Read more

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Should a 2 month old baby be sent to daycare with croup cough? Is it contagious?

Should a 2 month old baby be sent to daycare with croup cough? Is it contagious?

Confusing question: In more than 3 decades of caring for kids, I have never labeled a 2 month old as having the croup.Cough, maybe, and usually from environmental irritants, and not contagious, but never croup. Any crouping at that age would indicate an airway abnormality that deserves evaluation (laryngomalacia). ...Read more

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How long is croup contagious? My son drank out nieces cup who had it last wk. Her fever is gone and she's back at school. Still has a cough. Worry?

How long is croup contagious? My son drank out nieces cup who had it last wk. Her fever is gone and she's back at school. Still has a cough. Worry?

Unlikely...: Though one may contract a virus by touching a contaminated surface and then touching the eyes, nose or mouth, the timing of your niece's illness makes it unlikely. Croup is usually caused by a virus infection, most often a parainfluenza virus. After the third day of symptoms, a patient will begin to clinically improve. The cough may in itself represent a post-viral cough that may persist for weeks. ...Read more

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What do I do for croup?

What do I do for croup?

Understand It: A classic sound described as a seal bark or dog bark. Usually worse at nite and 1st thing in the morning. It can be confirmed by your pediatrician. Learn to ignore the sound, but judge the severity by the discomfort of the child.Mild discomfort may respond to steaming the bathroom or a walk outside, more severe breathing trouble needs seen asap in the local er. The root infection is a cold virus. ...Read more

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What sort of disease is croup?

What sort of disease is croup?

Barking Cough: Croup is usually caused by parainfluenza virus. Vocal cords get inflamed. Cough described as a seal barking. Sometimes fevers accompany croup. Cool air or shower steam can help cords feel more comfy. For more severe cases, your doctor may provide antiinflammatory like Dexamethasone (steroid). ...Read more

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What are the symptoms of croup?

What are the symptoms of croup?

Standard Symptoms: A classic sound described as a seal bark or dog bark. Usually worse at nite and 1st thing in the morning. It can be confirmed by your pediatrician. Learn to ignore the sound, but judge the severity by the discomfort of the child.Mild discomfort may respond to steaming the bathroom or a walk outside, more severe breathing trouble needs seen asap in the local er. The root infection is a cold virus. ...Read more

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What are the signs of croup in a child?

Barking cough: A barking cough that is much worse at night, relieved by steam or cold air; low grade fevers. ...Read more

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Is redipred for croup?

Is redipred for croup?

CROUP: Croup is an infection of the voice box (larynx) and windpipe (trachea). These are the upper and lower parts of the breathing tube that connects the mouth to the top of the lungs. Croup is common in young children and occurs most commonly between the ages of 1 and 3 years. Symptoms include, Cough, which is usually harsh and barking. A steroid medicine such as dexamethasone or prednisolone is usually prescribed. ...Read more

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Can croup cause pneumonia?

Can croup cause pneumonia?

Not exactly: Croup describes a clinical syndrome that involves infection (usually viral) of the upper airway and maybe the air tubes (bronchitis) so it can not "cause pneumonia" however some of the viruses that can cause croup like symptoms can also infect the lower resp tract and cause pneumonia or infection of the air spaces in the lungs. ...Read more

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Is swimming good for croup?

Is swimming good for croup?

Croup?: Increased humidity is good for croup. Run a humidifier in the child's room or sit in the bathroom with the hot shower on to steam up the room. Even taking a car ride with the windows cracked over can help with the stridor of croup. ...Read more

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Contagious (Definition)

One is able to transmit an infection to another by ...Read more