"To the best of our knowledge, there is no other tissue," Dr. William Sutker, chief of infectious diseases at Baylor, said in a telephone interview.

Dr. Arlin was an attending physician and chief of neoplastic diseases at the medical center.

In 1957, Dr. Weinstein became chief of infectious diseases at Tufts Medical School and stayed until his retirement in 1975.

Her father, who has retired as the chief of infectious diseases at the Franklin Square Hospital Center in Baltimore, remains its physician adviser.

Dr. Donald Armstrong, chief of infectious diseases at the center, said her heart became inflamed about two months after receiving blood donated by a Bolivian woman.

"It's a financial decision," said Dr. Offit, chief of infectious diseases at the Children's Hospital of Philadelphia.

Her father is the chief of pulmonary diseases at St. Peter's Hospital in Albany.

He conducted research at Harvard Medical School, and served as chief of infectious diseases at Boston Children's Hospital from the late 60's to 1976.

Dr. Warren D. Johnson, the chief of international medicine and infectious diseases at the medical school, wrote back that the changes had been made.

Shulman, chief of infectious diseases at Children's Memorial Hospital in Chicago, discovered the unique strain and decided to name it Salmonella mjordan.