Meaning of 医療 in Japanese

サンプルは世界２００の医療機関から収集された。
The samples were collected from two hundred medical institutions all over the world.

2000年に日本の医療制度が世界一だが、2003年に研修医制度が始まって目に見えて悪くなった。
In 2000 Japan's health care system was the best in the world, but since clinical internship was introduced in 2003 it has clearly deteriorated.

医療品は被災者たちに配分された。
The medical supplies were allocated to the victims of the disaster.

医療保険には入っていますか。
Do you have medical insurance?