Each year, isolated cases of a dangerous infection are reported in hot and humid regions around the world. These infections often prove fatal and typically occur in individuals who have been swimming in lakes, rivers, or inadequately chlorinated pools. There have also been instances where groups of infections were traced back to contaminated water supplies. Although infections with Naegleria fowleri (Naegleria) are currently rare, scientists worry that climate change might enable this and other harmful amoebas to spread to higher latitudes, increasing the likelihood of people encountering contaminated water.
The brain-eating amoeba has emerged as a recent health issue in Pakistan, with the first reported case occurring in Karachi in 2008. Since then, this infection has resulted in over 100 fatalities in the city, with at least 47 deaths reported in the last six years, according to the Sindh Health Department’s Naegleria monitoring and inspection team.
In the first two weeks of July, at least three residents of Karachi have died from Naegleria fowleri, known as the brain-eating amoeba, according to a spokesperson for the health department in Pakistan’s southern Sindh province. Two of these fatalities occurred this past week.
One of the victims was a 22-year-old named Aurangzeb, who had gone for a picnic with friends at a farmhouse in Quaidabad on July 7 and swam in the pool, started showing symptoms such as fever, headache, and nausea on July 8. He was admitted to the hospital on July 10, and the virus was confirmed on July 11. Aurangzeb became the third victim of the deadly infection this year in the city, with the previous cases reported in Korangi and Malir.
What Is Naegleria
Primary Amoebic Meningoencephalitis (PAM) is a sporadic yet deadly infection caused by Naegleria fowleri, often called the brain-eating amoeba. This tiny organism flourishes in warm, stagnant freshwater environments. It becomes a serious health threat when contaminated water enters the nose and goes to the brain, causing extensive tissue damage and swelling.
Symptoms
Early symptoms of PAM can easily be confused with those of common viral infections, complicating early diagnosis. Initial signs, such as headache, fever, nausea, and vomiting, are often mild. As the infection worsens, more serious symptoms can arise, including stiff neck, confusion, and in extreme cases, seizures, hallucinations, and coma. The disease progresses swiftly, often leading to death within days after symptoms begin. Immediate medical attention is essential, but even with treatment, the outlook is usually grim.
How To Keep Safe
To reduce the risk of Naegleria fowleri infection, avoid water activities during warmer months when water temperatures are higher and levels are lower, as the amoeba thrives in these conditions. If you jump or dive into the water, hold your nose shut or use a nose clip. Keep your head above water in hot springs and other naturally heated water sources. Additionally, avoid digging or stirring up sediment in shallow, warm freshwater, since the amoeba is more likely to reside in the sediment at the bottom of lakes, ponds, and rivers.
Awareness and preventive measures are crucial to reducing the risk of rare but often fatal Naegleria fowleri infections in warm freshwater environments.
