The BFAR, in a bulletin dated Nov. 5 but released on Sunday, identified these areas in Visayas and Mindanao as follows:- Coastal waters of Daram Island, as well as Villareal, Cambatutay, San Pedro, Maqueda and Irong-Irong bays in Western Samar- Matarinao Bay in Eastern Samar- Coastal waters of Baroy in Lanao del Norte"All types of shellfish and acetes sp. or alamang gathered from the areas shown above are not safe for human consumption," the advisory read.
According to the bureau, toxic shellfish taste and appear no different from nontoxic ones, and cooking does not destroy the red tide toxin. Eating toxic shellfish, it explained, may result in paralytic shellfish poisoning, which immediately affects the nervous system. Symptoms include tingling of the lips and tongue which spreads to the face, neck, fingertips and toes, followed by headache, dizziness and nausea.
The BFAR said that in severe cases, muscular paralysis and respiratory difficulty may occur within five to 12 hours. Deaths from respiratory paralysis have also been reported. Red tide occurs when there is high concentration of algae, resulting in the discoloration of water. Some of these algae produce toxic chemicals which are then consumed by the shellfish.
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