
Testing: A Neglected, Critical Component of the COVID-19 Response
The Global Accountability Platform (COVID GAP) blog series. January 31, 2022 By Valerie J. Parker and Beth Boyer Throughout the COVID-19 pandemic, accurate and timely testing has been critical for diagnosis, disease surveillance, and containment strategies. Diagnostic capacity, however, has been a challenge for countries at all income levels, and has been further stressed by surges driven by new variants. Now, with promising oral therapeutics entering the market, diagnostics are even more crucial as they are integral to the roll-out and effective use of the new antivirals. Not all tests are created equal There are two different types of diagnostic tests that are most commonly used, each with its own strengths and weaknesses. PCR tests are the gold standard in testing. They have higher sensitivity and can often detect infection prior…