It doesn't appear that this is a disease. Mertz is the last name of a doctor however.
LuEsther Mertz died in 1991.
LuEsther Mertz was born in 1905.
Ethel Mertz was created in 1951.
Henriette Mertz died in 1985.
Henriette Mertz was born in 1898.
Xavier Mertz was born in 1883.
Fred Mertz was created in 1951.
Charito Mertz is 5' 5".
Xavier Mertz died on 1913-01-08.
Stephen Mertz was born on 1947-05-03.
Edwin T. Mertz died in 1999.
Edwin T. Mertz was born in 1909.