The researchers will conduct clinical validation in children suspected of having been exposed to high levels of manganese in Chicago.
BD and the FDA said that a chemical called thiuram found in certain BD blood collection tubes may render results from Magellan's LeadCare blood lead tests inaccurate.
A dozen senators fired off a letter to the agencies seeking questions to answers surrounding the recent recalls of lead-poisoning tests and systems from Magellan Diagnostics.
The warning is for tests conducted by a venous draw, and the FDA/CDC recommends that some children and adults who got tested with Magellan's tests get retested.
The firm's three-minute lead test uses two drops of whole blood and will now be distributed in East and Central African countries.