Biological advances have all but eliminated disease, and genes can be rewritten to fix defects or make enhancements.

There may still be source code changes to fix defects.

Workers etch their names on the equipment they make and must fix defects without pay.

So far all you've proposed is fixing preexisting defects in the genetic makeup of a few individuals whose DNA isn't quite up to code.

The overall purpose of highway maintenance is to fix defects and preserve the pavement's structure and serviceability.

Defects (the effort involved in inspecting for and fixing defects)

The present owner, Harry Macklowe, says he was trying to fix defects he had just discovered when the bricks came showering down.

There could still be source code changes to fix defects, changes to documentation and data files, and peripheral code for test cases or utilities.

The computer industry's merry tradition is to fix known defects only when absolutely necessary, so assume problems are not your fault until you get proof otherwise.

MIBs are periodically updated to add new functionality, remove ambiguities and to fix defects.