If you are in the construction business or employed by an industry that uses products containing asbestos, you may wonder Are asbestos fibers visible to the eye? Generally asbestos fibers are too small to be seen by the naked eye.
Bird flu is an infection caused by avian (bird) influenza (flu) viruses. These flu viruses occur naturally among birds. Wild birds worldwide carry the viruses in their intestines, but usually do not get sick from them. However, bird flu is very contagious among birds and can make some domesticated birds, including chickens, ducks, and turkeys, very sick and kill them.
Autism is a severe developmental disorder that begins at birth or within the first two-and-a-half years of life. Most autistic children are perfectly normal in appearance, but spend their time engaged in puzzling and disturbing behaviors which are markedly different from those of typical children.
Alopecia areata is a form of hair loss from areas of the body, usually from the scalp . Because it causes bald spots on the head, especially in the first stages, it is sometimes called spot baldness. Alopecia areata affects both males and females.
