( CNN ) -- Another child has been infected with a rare , brain-eating parasite , less than a month after an Arkansas girl ended up in a hospital , fighting for her life . The Centers for Disease Control and Prevention confirmed another case of this amoeba , called Naegleria fowleri , in Florida , a spokesman told CNN Tuesday . The patient is 12-year-old Zachary Reyna , his family told CNN affiliate WBBH . Reyna 's family told WBBH that Reyna was kneeboarding with friends in a water-filled ditch by his house on August 3 . He slept the entire next day . Reyna is an active seventh grader , his family said , so sleeping that much was unusual . His mother took him to the hospital immediately . He had brain surgery , and doctors diagnosed him with primary amoebic meningoencephalitis , according to WBBH . The family said he is currently in the intensive care unit at the Miami Children 's Hospital . The CDC says it has been in touch with the patient 's doctors and has released the same experimental anti-amoeba drug used to treat 12-year-old Kali Hardig in Arkansas . Reyna 's family told WBBH he is also being treated with an antifungal medicine and antibiotics . Getting this parasite is extremely rare ; between 2001 and 2010 there were only 32 reported cases in the United States , according to the CDC . Most of the cases are in the Southeast . The cases are nearly always deadly , but Hardig 's case is giving the Reyna family some hope . The Arkansas girl was infected with the same rare , brain-eating parasite a couple of weeks ago and was in the intensive care unit at Arkansas Children 's Hospital . She is now in rehab , which is `` really a great sign for her , '' hospital spokesman Tom Bonner said Tuesday . She is listed in fair condition . Hardig has shown so much progress that she can now sign her own name , her mother , Traci Hardig , told Bonner . Kali ca n't talk yet because of a sore throat from the breathing tube and the general grogginess she feels from medication , Bonner said . Hardig 's doctors are in largely uncharted territory . Of 128 known cases in the past half-century , just two patients have survived an infection caused by this microscopic organism , according to the CDC . Naegleria fowleri is found in hot springs and warm , fresh water , most often in the southeastern United States . The amoeba enters the body through the nose and travels to the brain . There is no danger of infection from drinking contaminated water , the CDC says . `` This infection is one of the most severe infections that we know of , '' Dr. Dirk Haselow of the Arkansas Department of Health told CNN affiliate WMC about Hardig 's case . `` Ninety-nine percent of people who get it die . '' Why 'nightmare bacteria ' on the rise . Dr. Sanjiv Pasala , one of Hardig 's attending physicians , says doctors immediately started treating Hardig with a new experimental anti-amoeba drug they received directly from the CDC . They also reduced the girl 's feverish body temperature to 93 degrees . Doctors have used that technique in some brain injury cases as a way to preserve undamaged brain tissue . Several weeks ago , doctors checked the girl 's cerebral spinal fluid and could not find any presence of the amoeba . Willow Springs Water Park in Little Rock is the most likely source of Hardig 's infection , the Arkansas Department of Health says . Another case of the same parasite was reported in 2010 and was possibly linked to Willow Springs , a three-acre sand-bottom , spring-fed lake . `` Based on the occurrence of two cases of this rare infection in association with the same body of water and the unique features of the park , the ADH has asked the owner of Willow Springs to voluntarily close the water park to ensure the health and safety of the public , '' the health department said . Willow Springs ' website says its water is pH-balanced , chemically treated , chlorinated and routinely monitored by the health department . What 's in your pool water ? The first symptoms of primary amoebic meningoencephalitis appear one to seven days after infection , including headache , fever , nausea , vomiting and a stiff neck , according to the CDC . `` Later symptoms include confusion , lack of attention to people and surroundings , loss of balance , seizures and hallucinations , '' the government agency 's website states . `` After the start of symptoms , the disease progresses rapidly and usually causes death within one to 12 days . '' Here are some tips from the CDC to help lower the risk of infection : . • Avoid swimming in fresh water when the water temperature is high and the water level is low . • Hold your nose shut or use nose clips . • Avoid stirring up the sediment while wading in shallow , warm freshwater areas . • If you are irrigating , flushing or rinsing your sinuses ( for example , by using a neti pot ) , use water that has been distilled or sterilized . CNN 's John Bonifield and Caleb Hellerman contributed to this story .
NEW : Family says Zachary Reyna is receiving same drugs as Kali Hardig . The family of a man who died after being injected with the drug ketamine has filed suit against two doctors and one pharmacy in New York City. Both Reyna and Hardig contracted a rare , brain-eating parasite called Naegleria fowleri .