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Doctor insights on: How Long Is Scarlet Fever Contagious

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My child has scarlet fever. Is she contagious?

My child has scarlet fever.  Is she contagious?

Yes: These patients are considered contagious from at least 24 hrs prior to the onset of the fever/rash and for the first 24 hours after starting treatment. Those who acquire the strep from this case would be expected to also develop the rash unless treated prior to the onset of fever. ...Read more

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Dr. Mark Diamond
2,227 doctors shared insights

Fever (Definition)

Fever is the temporary increase in the body's temperature in response to some disease or illness. A child has a fever when the temperature is at or above one of ...Read more


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Can you tell me how contagious is scarlet fever?

Can you tell me how contagious is scarlet fever?

Avoidable: With good hand washing and avoiding any oral secretions of the patient this is avoidable.Scarlet fever is just a form of group A strep disease, commonly a throat infection.Once the patient has been on antibiotic treatment for 24 hours, they are no longer considered contagious. ...Read more

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Is scarlet fever highly contagious bc my coworker has it?

Is scarlet fever highly contagious bc my coworker has it?

Scarlet fever: Scarlet fever is an uncommon sign of a common strep infection. The strep germ typically causes bad sore throat (pharyngitis) with pus and fever and pain, and is easily spread to others in the house. In only about 1% of cases it also causes a pink, rough, sandpapery kind of rash all over the body; if this occurs, they called the illness "scarlet fever." the scarlet fever is not itself contagious. ...Read more

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Is scarlet fever contagious? Should i be wary of someone who has scarlet fever? Is it contagious? .

Is scarlet fever contagious? Should i be wary of someone who has scarlet fever? Is it contagious?

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Depends on situation: After 24 hrs of antibiotic treatment the individual is not considered contagious. Without treatment, keep your distance. ...Read more

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Spouse has strep with a rash, scarlet fever. How serious/contagious is that?

Spouse has strep with a rash, scarlet fever. How serious/contagious is that?

Very.: Strep is quite contagious; but after a few days of an effective antibiotic therapy, the contagion risk drops dramatically. ...Read more

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Can scarlet fever be fatal if it goes long untreated? If i left scarlet fever untreated thinking that it is normal fever, can this be fatal ? .

Yes: B 4 antibiotics this strep infection was a leading cause of death. It can coaus nephritis, carditis with valvular involvement. U need care now! get in 2 b cn, pcp or er. Already too long is not being treated. Get going! ...Read more

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Can scarlet fever be fatal if it goes long untreated? If i left scarlet fever untreated thinking that it is normal fever, can this be fatal ? .

Can scarlet fever be fatal if it goes long untreated? If i left scarlet fever untreated thinking that it is normal fever, can this be fatal ?

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Untreated strep: Theoretically . Untreated. Scarlet can cause heart disease which can be fatal (myocarditis) it can also cause glomeruli nephritis which in turn can cause malignant blood pressure which in turn can lead to death. ...Read more

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What are the symtoms of scarlet fever in a i year old child? What also are some of the long term effects of a i year old child after having scarlet fever un- checked for several days?

Scarlet : Scarlet fever is caused by group a streptoccoccus - the same bacteria that causes strep throat. The symptoms usually start 1-2 days after infection and include sore throat, fever, sand papery red rash, abdominal pain, muscle aches, headache, vomiting, swollen red tongue and/or bright red color in the creases of the underarm or groin. With proper antibiotic treatment, the symptoms typically improve quickly (2-3 days) though the rash can last for a few weeks. Long term complications are extremely rare with treatment. The most concerning complication is acute rheumatic fever which occurs around 20 days after the start of infection if the patient is not treated with antibiotics. This can cause permanent heart valve damage. Other rare complications of untreated strep are bone or joint problems, kidney problems, inflammation of a gland, ear infection, meningitis, pneumonia, or sinusitis. Legal disclaimer: I am providing this general and basic information as a public service and my response to this question does not constitute a doctor-patient relationship. For any additional information, advice, or specific concerns, please speak with your own physician. The information provided is current as of the date of the answer entry. ...Read more

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How long does it take scarlet fever to show up if you were around someone who had it?

How long does it take scarlet fever to show up if you were around someone who had it?

Rash and fever: The rash is usually a good signal that you have picked up this strain. It will emerge generally by 12 hours after any fever associated with this strain of strep. ...Read more

Dr. John cuong Doan
105 doctors shared insights

Scarlet Fever (Definition)

Scarlet fever is a condition consisting of a sandpaper-like rash that can occur with a strep throat infection. It starts on the neck and ...Read more


Contagious (Definition)

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