Medical tests: How necessary?
Doctors are increasingly prescribing tests to arrive at a diagnosis. Has this benefited medical practice or patients? Four experts debate
UK fertility clinics offering unverified add-on services
A research paper finds that only 13 of 74 clinics substantiated the claims on their websites
Faster diagnostic tests developed for tuberculosis
Scientists bring out a highly sensitive and rapid test for detection of tuberculosis infection in lungs and surrounding membranes
What exactly are the tests being used to detect coronavirus?
Here is an explainer on molecular and immunoassays currently in use
Lethal guinea pig test scrapped by Bureau of Indian Standards
The old test, in which the animals bled to death, has been replaced by a new one that incorporates a polymerase chain reaction