weigh in. Be weighed; also, be of a particular weight. For example, Because it was such a small plane, the passengers and their luggage had to weigh in before takeoff , or The fish weighed in at 18 pounds. [Late 1800s] See also: weigh.
Asthma and allergic diseases, such as allergic rhinitis (hay fever), food allergy, and atopic dermatitis (eczema), are common for all age groups in the United States.
Different types of: Lyme disease, the most common vector-borne illness in the United States, is a multisystem illness caused by infection with the spirochete Borrelia burgdorferi. There are different types of Lyme disease. Early it can be the rash in some people - called erythema chronicum migrans - which is circular.