The challenges to deploy diagnostic and surveillance testing for the COVID-19 pandemic will persist at least until a vaccine is ready if not well beyond that milestone. The state of COVID-19 testing as a regulated sector is a complex intersection of new and old technologies, questionable accuracy, availability hurdles, supply chain interruptions and problems with interpretation of results.

After a long approval process, Monmouth Junction N.J.-based Cytosorbents Corp. received clearance to bring its Cytosorb blood purification technology to treat cytokine storm and deadly inflammation in critically ill and cardiac surgery patients, to the Mexican market. The COVID-19 pandemic may delay marketing plans to roll-out the product in the Latin American country.

The U.S. FDA continues to modify its emergency use authorization (EUA) policy for testing for the SARS-CoV-2 virus, although workplace testing is still on the agency’s to-do list. The FDA’s Tim Stenzel noted on a May 6 briefing that serological tests for antibodies must now demonstrate an overall sensitivity of 90% and overall specificity of 95%, a set of standards that might challenge some tests that are available under the EUA policy.

Zoll Medical Corp., of Chelmsford, Mass., received CE mark approval to market its second-generation Supersaturated Oxygen (SSO₂) Therapy in Europe and other countries that accept CE mark. The therapy, which delivers hyperbaric levels of oxygen to the ischemic heart muscle immediately following percutaneous coronary intervention, has been shown to significantly reduce damage to the heart muscle after an acute myocardial infarction.