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how long is croup contagious

A 47-year-old member asked:
Dr. Curt Stankovic
19 years experience Pediatric Emergency Medicine
No: Steroid administration does not affect the transmission of croup. Steroids are administered to reduce difficulty breathing associated with croup. Th ... Read More
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A member asked:
Dr. John Leander Po
17 years experience Infectious Disease
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 ... Read More
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A 35-year-old female asked:
Dr. Jay Park
Dr. Jay Park answered
49 years experience Pediatrics
1-4 weeks: Immunocompetent children infected with parainfluenza virus may shed virus for 1-3 weeks even after symptoms subside.
A member asked:
Dr. Tanya Russo
24 years experience Pediatrics
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. Howeve ... Read More
A 55-year-old member asked:
Dr. Michael Ein
47 years experience Infectious Disease
Depends: Most pathogens that cause pneumonia are not contagious. Some organisms like MRSA can spread to healthy contacts and cause colonization. Some organis ... Read More
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A 38-year-old member asked:
Dr. Bradley Younggren
21 years experience Emergency Medicine
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 o ... Read More
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A 44-year-old member asked:
Dr. James Ferguson
45 years experience Pediatrics
Depends: The oral secretions are considered contagious until the kid is fever free but may persist with intimate contact. The germ can persist in the stool for ... Read More
A 23-year-old female asked:
Dr. Geoffrey Rutledge
40 years experience Internal Medicine
Until better: Most viral infections, including mono, are infectious most at the outset, even before you fall ill. Once you are feeling better, you are usually no l ... Read More
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A 51-year-old member asked:
Dr. Martin Raff
55 years experience Infectious Disease
MRSA: Depends on your definition of "contagious". This organism is generally transferred person to person by direct hand contact, and then the other person ... Read More
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A 34-year-old female asked:
Dr. Robert Killian
27 years experience General Practice
Viral Illnesses: There may be a variety of answers to this question, but early is always thought to be the time one is most contagious. So, two days before you are at ... Read More
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A 40-year-old member asked:
Dr. Ryan Phasouk
17 years experience Family Medicine
It is accepted: It is accepted that one can return to contact with other individuals after completing 5 days of antibiotics when treating whooping cough. All the bes ... Read More
A 54-year-old member asked:
Dr. Bernstein Joel
59 years experience ENT and Head and Neck Surgery
Several weeks: In a healthy 48 year old, your immune system should eradicate a viral upper respiratory tract infection in about 2 to 3 weeks.
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A 33-year-old member asked:
Dr. Amanda Xi
Dr. Amanda Xi answered
5 years experience General Practice
Extremely: Measles is transmitted via the respiratory route and an infected person can infect others up to 7 days prior to showing symptoms and up to 3-4 days af ... Read More
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A 46-year-old member asked:
Dr. SG Erman
Dr. SG Erman answered
34 years experience Family Medicine
7-10days: 7-10 days, worst time is usually days 2-4.
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A 37-year-old member asked:
Dr. Richard Bensinger
51 years experience Ophthalmology
Not long: Bacterial conjunctivits (not viral conjunctivitis) in adults requires some breakdown of the surface of someone exposed. Bacteria cannot penetrate the ... Read More
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A 48-year-old member asked:
Dr. Martin Ostro
48 years experience Allergy and Immunology
It is not contagious: Acute bronchitis is a reaction to a viral respiratory infection (vri) by suseptible indiviuals, leading to frequent cough, increased mucus production, ... Read More
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A 59-year-old member asked:
Dr. Karen Han
Dr. Karen Han answered
22 years experience Dermatology
When it's crusty: Impetigo is contagious until crusty plaque is completely resolved with complete healing (closure) of the skin without residual weeping or discharge.
A 45-year-old member asked:
Dr. James Ferguson
45 years experience Pediatrics
Most ~ 8days: General viral sheading in RSV lasts 3-8 days in most; in some with complications they could shed for 4-6 wks. Droplet isolation(use of mask) & good ha ... Read More
A 33-year-old member asked:
Dr. Tsu-Yi Chuang
49 years experience Dermatology
Long: As long as the person still has the active lesions which contain scabies, he/she is contagious to other people anytime he/she comes in (close) contact ... Read More
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A 32-year-old member asked:
Dr. Mark Diamond
45 years experience Pediatrics
If Infected-Very: If caused by infection-bacterial or viral-very contagious thru moisture droplets released through breathing , coughing, sneezing, etc. Avoid close con ... Read More
A 49-year-old member asked:
Dr. Morris Westfried
45 years experience Dermatology
1—2 weeks: It is contagious until scabs are totally dry, but requires direct contact
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A female asked:
Dr. Jennifer Atkins
10 years experience Pediatrics
Several weeks: The causes of herpangina vary but generally children are contagious up to a week before there even symptomatic and can still spread the virus several ... Read More
A 56-year-old member asked:
Dr. Sue Ferranti
28 years experience Internal Medicine
Difficult to answer: There are many different viruses that can cause bronchitis, all with different incubation periods and different time frames for viral shedding. But, i ... Read More
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