Hand, foot and mouth disease
What is hand, foot and mouth disease?
Hand, foot and mouth disease is a common viral infection. A mild illness, it mainly affects children who are under five years of age, usually during the warmer weather. The virus is spread by direct contact with fluid from the blisters, nasal discharge or fecal matter of an infected person. The virus can be found in the feces several weeks after the symptoms have disappeared.
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Viral infection
An infection with a virus, a microscopic infectious agent that only replicates within cells of other living organisms.
Causes and risk factors
Hand, foot and mouth disease is a viral infection, usually caused by a group of ribonucleic acid (RNA) viruses called coxsackieviruses, which belong to the Enterovirus genus and Picornaviridae family. These viruses spread by contact with infected children.
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Viral infection
An infection with a virus, a microscopic infectious agent that only replicates within cells of other living organisms.
Signs and symptoms
Hand, foot and mouth disease is often diagnosed from the appearance of blisters. Typically, these initially appear on the mouth, and then in other areas including the soles of feet, fingers, palms, nappy area and sides of the tongue. Unlike chickenpox blisters, these blisters are not itchy. Other symptoms of hand, foot and mouth disease include:
- A sore throat;
- Tiredness and irritability;
- High temperature, and;
- Poor appetite (eating and drinking normally can be painful because of the mouth blisters).
Hand, foot and mouth disease causes blisters.
Methods for diagnosis
Most of the time a doctor will diagnose hand, foot and mouth disease based on the external symptoms. Very rarely, a throat swab or feces sample may be taken for laboratory testing.
Types of treatment
There is no specific treatment for hand, foot and mouth disease and it usually passes in a few days. However, acetaminophen or ibuprofen may be used to relieve discomfort and fever.
Blisters should not be broken, as the fluid in the blisters is infectious.
Potential complications
In very rare cases, the virus that causes hand, foot and mouth disease can cause viral meningitis, which may require hospitalization for a few days. There have also been cases of the infection spreading to the brain resulting in brain inflammation (encephalitis).
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Encephalitis
Inflammation of the brain, usually caused by a viral infection.
Prognosis
The disease usually resolves itself within 7-10 days.
Prevention
As the viruses that cause hand, foot and mouth disease are spread through contact with the blister fluid, nasal discharge or fecal matter of the infected person, practicing good personal hygiene is the best way of preventing contamination. Teaching your children to cover their mouths during coughing and sneezing and frequent hand washing will minimize the risk of an infection. It is important that children stay at home from school, childcare and playgroup until all the fluid in the blisters has dried, so as to avoid infecting other children.
References
- A case-control study to identify environmen... [Jpn J Infect Dis. 2014] - PubMed - NCBI. Accessed 16 September 2014 from link here
- Hand foot and mouth disease | Better Health Channel. Accessed 16 September 2014 from link here
- Hand Foot and Mouth Disease | Features | CDC. Accessed 16 September 2014 from link here
- Hand foot & mouth disease information sheet - Blue Book - Infectious Diseases Epidemiology & Surveillance - Department of Health Victoria Australia. Accessed 16 September 2014 from link here
- WA Health - Public Health - Hand foot and mouth disease fact sheet. Accessed 16 September 2014 from link here
8 Most frequently asked questions (FAQs)
What is hand, foot and mouth disease? Hand, foot and mouth disease is a common viral infection which is characterized by the presence of blisters. A mild illness, it mainly affects children who are younger than five years of age, usually during warmer weather. Who gets hand, foot and mouth disease? Hand, foot and mouth disease mainly affects children aged under five, particularly those in childcare settings, but it can also affect older children and adults. How is hand, foot and mouth disease treated? There is no specific treatment for hand, foot and mouth disease and it usually passes in a few days. However, acetaminophen or ibuprofen may be used to relieve discomfort and fever. Can hand, foot and mouth disease be prevented? As the viruses that cause hand, foot and mouth disease are spread through contact with the blister fluid, nasal discharge or fecal matter of the infected person, practicing good personal hygiene is the best way of preventing contamination. It is important that children stay at home from school, childcare and playgroup until all the fluid in the blisters has dried so as to avoid other children getting sick.
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