how long does it take for pam symptoms to start
Infection with Naegleria causes the disease primary amebic meningoencephalitis (PAM), a brain inflammation, which leads to the destruction of brain tissue. Initial signs and symptoms of PAM start one to 14 days after infection and include headache, fever, nausea, vomiting and stiff neck. As the amebae cause more extensive destruction of brain tissue, this leads to confusion, lack of attention to people and surroundings, loss of balance, seizures and hallucinations.