Sick chimps improving, but not on exhibit

April 1, 2009 3:22:17 PM PDT
Six chimps that fell ill after a seventh chimp died last week remain confined to their rooms for rest.Lincoln Park Zoo hopes the chimps are well enough to move into the day room and public viewing area by the end of the week.

On March 24, a 9-year-old male chimp named Kipper died of a respiratory illness. The other chimps fell ill and were quarantined. They have been receiving medical treatment since.