SCARLET FEVER - A Group A Streptococcal Infection

Scarlet fever results from group A strep infection. If your child has a sore throat and rash, their doctor can test for strep. Quick treatment with antibiotics can protect your child from possible complications.

Not as common as it was 100 years ago, scarlet fever – scarlatina – is a bacterial infection caused by group A Streptococcus or "group A strep." This illness affects a small percentage of people who have strep throat or, less commonly, streptococcal skin infections. Scarlet fever is treatable with antibiotics and usually is a mild illness, but it needs to be treated to prevent rare but serious complications. Treatment with antibiotics also helps clear up symptoms faster and reduces spread to other people.

Although anyone can get scarlet fever, it usually affects children between 5 and 12 years of age. The classic symptom of the disease is not the fever, but a certain type of red rash that feels rough, like sandpaper.

How Do You Get Scarlet Fever?

Group A strep bacteria can live in a person's nose and throat. The bacteria are spread through contact with droplets from an infected person's cough or sneeze. If you touch your mouth, nose, or eyes after touching something that has these droplets on it, you may become ill. If you drink from the same glass or eat from the same plate as the sick person, you could also become ill. It is possible to get scarlet fever from contact with sores from group A strep skin infections.

Scarlet Fever: What to Expect

Illness usually begins with a fever and sore throat. There also may be chills, vomiting, and abdominal pain. The tongue may have a whitish coating and appear swollen. It may also have a "strawberry"-like (red and bumpy) appearance. The throat and tonsils may be very red and sore, and swallowing may be painful.

One or two days after the illness begins, the characteristic red rash appears (although the rash can appear before illness or up to 7 days later). Certain strep bacteria produce a toxin (poison) which causes some people to break out in the rash—the "scarlet" of scarlet fever. The rash may first appear on the neck, underarm, and groin, then spread over the body. Typically, the rash begins as small, flat red blotches which gradually become fine bumps and feel like sandpaper.

Although the cheeks might have a flushed appearance, there may be a pale area around the mouth. Underarm, elbow and groin skin creases may become brighter red than the rest of the rash. These are called Pastia's lines. The scarlet fever rash generally fades in about 7 days. As the rash fades, the skin may peel around the finger tips, toes, and groin area. This peeling can last up to several weeks.

Scarlet fever is treatable with antibiotics. Since either viruses or other bacteria can also cause sore throats, it's important to ask the doctor about a strep test (a simple swab of the throat) if your child complains of having a sore throat. If the test is positive, meaning your child is infected with group A strep bacteria, your child's doctor will prescribe antibiotics to avoid possible, although rare, complications, reduce symptoms, and prevent further spread of the disease.

Complications from Scarlet Fever

Complications from scarlet fever may include:

• Rheumatic fever (an inflammatory disease that can affect the heart, joint, skin, and brain)
• Kidney disease (inflammation of the kidneys, called poststreptococcal glomerulonephritis)
• Ear infections (otitis media)
• Skin infections
• Abscesses of the throat
• Pneumonia (lung infection)
• Arthritis (joint inflammation)

Most of these complications can be prevented by treatment with antibiotics.

Preventing Infection: Wash Those Hands

The best way to keep from getting infected is to wash your hands often and avoid sharing eating utensils, linens, towels or other personal items. It is especially important for anyone with a sore throat to wash his or her hands often. There is no vaccine to prevent strep throat or scarlet fever. Children with scarlet fever or strep throat should stay home from school or daycare for at least 24 hours after starting antibiotics.

Antibiotics: Bacteria-Busters

Group A Streptococcus, or group A strep, is a type of bacteria commonly found in people's throats and on their skin. Group A strep can cause a range of infections, from a sore throat, called "strep throat," to skin infections, like impetigo. It also can cause extremely dangerous, life-threatening infections.

The word antibiotic comes from the Greek anti meaning 'against' and bios meaning 'life' (a bacterium is a life form). Antibiotics are also known as antibacterials, and they are used to treat infections caused by bacteria, such as scarlet fever or whooping cough.

Antibiotics target only bacteria. They do not attack fungi or viruses, which cause infections like athlete's foot or the common cold. If you or your child has an infection, it's important to know the cause and follow the right treatment. Improper use of antibiotics has resulted in many bacteria becoming resistant to antibiotics.

Source: http://www.cdc.gov/

SCARLET FEVER - About Scarlet Fever

About Scarlet Fever

Scarlet fever is caused by an infection with group A streptococcus bacteria. The bacteria make a toxin (poison) that can cause the scarlet-colored rash from which this illness gets its name.

Not all streptococci bacteria make this toxin and not all kids are sensitive to it. Two kids in the same family may both have strep infections, but one child (who is sensitive to the toxin) may develop the rash of scarlet fever while the other may not. Usually, if a child has this scarlet rash and other symptoms of strep throat, it can be treated with antibiotics. So if your child has these symptoms, it's important to call your doctor.

Symptoms of Scarlet Fever

The rash is the most striking sign of scarlet fever. It usually begins looking like a bad sunburn with tiny bumps and it may itch. The rash usually appears first on the neck and face, often leaving a clear unaffected area around the mouth. It spreads to the chest and back, then to the rest of the body. In body creases, especially around the underarms and elbows, the rash forms classic red streaks. Areas of rash usually turn white when you press on them. By the sixth day of the infection the rash usually fades, but the affected skin may begin to peel.

Aside from the rash, there are usually other symptoms that help to confirm a diagnosis of scarlet fever, including a reddened sore throat, a fever above 101°F (38.3°C), and swollen glands in the neck. The tonsils and back of the throat may be covered with a whitish coating, or appear red, swollen, and dotted with whitish or yellowish specks of pus. Early in the infection, the tongue may have a whitish or yellowish coating. A child with scarlet fever also may have chills, body aches, nausea, vomiting, and loss of appetite.

When scarlet fever occurs because of a throat infection, the fever typically stops within 3 to 5 days, and the sore throat passes soon afterward. The scarlet fever rash usually fades on the sixth day after sore throat symptoms began, but skin that was covered by rash may begin to peel. This peeling may last 10 days. With antibiotic treatment, the infection itself is usually cured with a 10-day course of antibiotics, but it may take a few weeks for tonsils and swollen glands to return to normal.

In rare cases, scarlet fever may develop from a streptococcal skin infection like impetigo. In these cases, the child may not get a sore throat.

Preventing Scarlet Fever

The bacterial infection that causes scarlet fever is contagious. A child who has scarlet fever can spread the bacteria to others through nasal and throat fluids by sneezing and coughing. If a child has a skin infection caused by strep bacteria, like impetigo, it can be passed through contact with the skin.

In everyday life, there is no perfect way to avoid the infections that cause scarlet fever. When a child is sick at home, it's always safest to keep that child's drinking glasses and eating utensils separate from those of other family members, and to wash these items thoroughly in hot soapy water. Wash your own hands frequently as you care for a child with a strep infection.

Treating Scarlet Fever

If your child has a rash and the doctor suspects scarlet fever, he or she will usually take a throat culture (a painless swab of throat secretions) to see if the bacteria grow in the laboratory. Once a strep infection is confirmed, the doctor will likely prescribe an antibiotic for your child to be taken for about 10 days.

Caring for a Child With Scarlet Fever

A child with severe strep throat may find that eating is painful, so providing soft foods or a liquid diet may be necessary. Include soothing teas and warm nutritious soups, or cool soft drinks, milkshakes, and ice cream. Make sure that the child drinks plenty of fluids.

Use a cool-mist humidifier to add moisture to the air, since this will help soothe the sore throat. A moist warm towel may help to soothe swollen glands around your child's neck.

If the rash itches, make sure that your child's fingernails are trimmed short so skin isn't damaged through scratching.

When to Call the Doctor

Call the doctor whenever your child suddenly develops a rash, especially if it is accompanied by a fever, sore throat, or swollen glands. This is especially important if your child has any of the symptoms of strep throat, or if someone in your family or in your child's school has recently had a strep infection.

Reviewed by: Joel Klein, MD
Date reviewed: July 2012

Source: http://kidshealth.org/