Average monthly weather in Calcutta, India. Kolkata has a Tropical wet-and-dry climate. (80 Â°Fahrenheit). Summers are hot and humid with temperatures in the low 30's and during dry spells the maximum temperatures often exceed 40 Â°C (104 Â°F) during May and June.
Food allergy is an immune system reaction that occurs soon after eating a certain food. Even a tiny amount of the allergy-causing food can trigger signs and symptoms such as digestive problems, hives or swollen airways.n some people, a food allergy can cause severe symptoms or even a life-threatening reaction known as anaphylaxis. Food allergy affects an estimated 6 to 8 percent of children under age 3 and up to 3 percent of adults.
Food allergies are specific, in the sense that your child may be allergic to a particular food or category of foods having a type of protein that the immune system sees as a threat. While any food can cause an allergic reaction, the foods mentioned below are the most common allergens.