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Published on: 7/23/2025

What are the specific symptoms of PAM infection?

Primary Amebic Meningoencephalitis (PAM) symptoms include headache, fever, nausea, vomiting, and stiff neck, often progressing to confusion and seizures.

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Explanation

Primary Amebic Meningoencephalitis, or PAM, is a rare brain infection caused by a microscopic ameba. Symptoms often start with:

  • Headache: This can be severe and persistent.
  • Fever: A high temperature may develop quickly.
  • Nausea and Vomiting: These are common early signs.
  • Stiff Neck: This can make it hard to move the head.

As the infection progresses, more serious symptoms can appear, such as:

  • Confusion: The person may become disoriented or have trouble thinking clearly.
  • Seizures: These are sudden bursts of electrical activity in the brain that can cause convulsions.

PAM is a serious condition that requires immediate medical attention. It progresses rapidly and can be life-threatening. If you experience these symptoms after swimming in warm freshwater, it is important to seek medical help right away.

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