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Symptoms
By Mayo Clinic staffA malaria infection is generally characterized by recurrent attacks with the following signs and symptoms:
- Moderate to severe shaking chills
- High fever
- Profuse sweating as body temperature falls
Other signs and symptoms may include:
- Headache
- Nausea
- Vomiting
- Diarrhea
Malaria signs and symptoms typically begin within a few weeks after a bite from an infected mosquito. However, some types of malaria parasites can lie dormant in your body for months, or even years.
When to see a doctor
Talk to your doctor if you experience a high fever while living in or after traveling to a high-risk malaria region. The parasites that cause malaria can lie dormant in your body for months. If you have severe symptoms, seek emergency medical attention.
- Ashraf A, et al. Malaria. In: Ferri FF. Ferri's Clinical Advisor 2010. Philadelphia, Pa.: Mosby Elsevier; 2009. http://www.mdconsult.com/das/book/body/199988049-9/0/2088/391.html#4-u1.0-B978-0-323-05609-0..00022-8--sc0015_8054. Accessed May 7, 2010.
- Krogstad DJ. Malaria. In: Goldman L, et al. Cecil Medicine. 23rd ed. Philadelphia, Pa.: Saunders Elsevier; 2007. http://www.mdconsult.com/das/book/body/199988049-9/0/1492/1254.html#4-u1.0-B978-1-4160-2805-5..50371-2--cesec19_15544. Accessed May 7, 2010.
- Malaria: Frequently asked questions. Centers for Disease Control and Prevention. http://www.cdc.gov/malaria/about/faqs.html. Accessed May 10, 2010.
- Malaria vaccine. Centers for Disease Control and Prevention. http://www.cdc.gov/features/vaccines.html. Accessed May 7, 2010.
- Arguin PM, et al. Prevention of malaria infection in travelers. http://www.uptodate.com/home/index.html. Accessed May 7, 2010.
- Breman JG. Clinical manifestations of malaria. http://www.uptodate.com/html/index.html. Accessed May 11, 2010.
- Malaria diagnosis (United States). Centers for Disease Control and Prevention. http://www.cdc.gov/malaria/diagnosis_treatment/diagnosis.html. Accessed May 11, 2010.
- Treatment of malaria (guidelines for clinicians). Centers for Disease Control and Prevention. http://www.cdc.gov/malaria/resources/pdf/clinicalguidance.pdf. Accessed May 11, 2010.
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