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MANILA - Private companies are working with health professionals to bring COVID-19 screening to the barangay level, an economic adviser to President Rodrigo Duterte said Thursday.

The China-made test kits measure antibodies in the blood, gauging the person's defenses against infection. This will be " very crucial in determining a screening process of who in the barangay will be infected," said Presidential Adviser for Entrepreneurship Joey Concepcion.

Data gathered from barangays can help government in its fight against COVID-19, he said.

The rapid tests will not be mandatory but some companies could take the initiative to test their employees as a precaution, he said.