Pterois Rarely, such stings can cause temporary paralysis of the limbs, heart failure, and even death. Fatalities are common in very young children, the elderly, those with a weak immune system, or those who are allergic to their venom. Their venom is rarely fatal to healthy adults, but some species have enough venom to produce extreme discomfort for a period of several days. However, "Pterois" venom is a danger to allergic victims as they may experience anaphylaxis, a serious and often life-threatening condition that requires immediate emergency medical treatment. Severe allergic reactions to "Pterois" venom include chest pain, severe breathing difficulties,
Red imported fire ant Some victims may develop a more serious allergic reaction which can be life-threatening. The venom is mainly composed of insoluble alkaloids with a minor watery phase containing some 46 proteins of which four are reported as allergens. Because of their notoriety and invasive behaviour, red imported fire ants are considered pests. In the United States, the Food and Drug Administration estimates more than $5 billion is spent annually on medical treatment, damage, and control in infested areas. They can also cause $2.5 billion in damages annually in just 20 years. In Texas alone, red imported fire ants caused $300 million