American Clinical Laboratory Association update on COVID-19 testing capacity (June 27, 2020) COVID-19 Client Communication: Serologic testing for IgG (EUROIMMUN) (April 29, 2020) Sonic Healthcare USA SARS-CoV-2/COVID-19 update for health plans: pricing/CPT code summary (April 21, 2020) COVID-19 Patient FAQs; COVID-19 Provider FAQs.