Santa Fe Springs, California, USA. 21st April, 2021. The entrance to the Betty Wilson Center where the new IgG II Antibody Test is being offered to individuals who have been vaccinated against COVID-19 at the No-Cost COVID-19 Antibody Testing held at the Betty Wilson Center in Santa Fe Springs, California. This new FDA EUA (emergency use authorized) IgG II antibody test is the most sensitive and specific to date for COVID-19 antibodies (2 to 4 weeks after 2nd dose). GUARDaHEART Foundation is a 501 (c)(3) non-profit organization. Credit: Sheri Determan

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Photo credit: © Sheri Determan / Alamy / Afripics
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