For sufficiently wide stairs, a rail is mounted to the treads of the stairs. A chair or lifting platform is attached to the rail. A person on the chair or platform is lifted as the chair moves along the rail. Stairlifts are known variously as stair lifts, stair-lifts, chair lifts, stair gliders and by other names. This type of chair lift should not be confused with the chairlift used by skiers. The term stair climber can refer either to stair lifts, or more commonly to the exercise equipment by the same name. Some of the first stairlifts to be produced commercially were advertised and sold in the USA in the 1930s by the Inclinator Company of America. Many users at the time were victims of polio.
A disease of cattle and swine caused by tapeworm larvae. measles. An infectious disease caused by the rubeola virus of the genus Morbillivirus, characterized by fever, cough, and a rash that begins on the face and spreads to other parts of the body. Vaccinations, usually given in early childhood, confer immunity to measles.
Measles is a disease caused by a virus that is spread through the air by breathing, coughing, or sneezing. Measles virus is highly contagious and can remain so for up to 2 hours in the air or on surfaces. Symptoms of measles are rash, high fever, cough, runny nose, and red, watery eyes.easles remains a common disease in many parts of the world, including Europe, the Middle East, Asia, the Pacific, and Africa. In the United States, most measles cases result from international travel. The disease is brought into the United States by people who get infected in other countries.