Nichols makes test kits and sells them to hospitals, clinical labs and dialysis centers.
"We have done clinical labs, individual doctors and some national cases.
"Investments at Enzo Clinical Labs to further expand higher-margin esoteric diagnostic tests are having a favorable impact".
Some experts have been calling for either the F.D.A. or the Center for Medicare and Medicaid Services, which regulates clinical labs, to bolster regulation of genetic tests.
Maryland recently passed a law that will hold its crime labs to the same standards as clinical labs, a much more rigorous requirement.
Clinical labs, which perform most tests and are required to report to the physicians, were the exception.
The pharmacogenomics laboratory at the University of Louisville, one of the main clinical labs that offer metabolism tests, performed 3,500 to 5,000 in the last year, according to its director, Roland Valdes Jr.
Elizabeth Holmes, the embattled founder and chief executive of Theranos, said late on Wednesday that the company will close its clinical labs and Walgreens testing centers in the US.
The new centerpiece of the American effort to cure H.I.V. is the Martin Delaney Collaboratories, funded by the N.I.H. Launched in 2011, the collaborative was formulated as a way to link clinical labs, research facilities, and pharmaceutical companies.
In October, the company announced that it would lay off forty per cent of its workforce and shut down its clinical labs, and said it is no longer in the blood-testing business.
In 1999, 170,000 clinical labs in the United States performed 5.7 billion tests, according to a report last year by the Institute of Medicine, part of the National Academy of Sciences.
