Counterfeit versions of diagnostics from ACON Laboratories and iHealth are being illegally imported and sold in US. Alert also tells consumers how to spot counterfeit tests.

Counterfeit versions of diagnostics from ACON Laboratories and iHealth are being illegally imported to and sold in the US, the agency says. The alert also tells consumers how to spot counterfeit tests.

The agency says the diagnostics could produce inaccurate results, which may delay proper treatment and further the spread of COVID-19.

Inverness Medical Innovations, a point-of-care diagnostics company, made a splash with its $1.6 billion acquisition of Biosite. But the purchase was merely the latest step in a long-time strategy of growing through acquisition.