The COVID-19 clinical trial where scientists purposefully infected volunteers showed that the symptoms an infected person experienced did not indicate how likely they were to pass on the virus that causes COVID-19, researchers behind the trial said. “There was no correlation between the amount of viral shedding by qPCR or FFA and symptom score,” researchers with Imperial College in London said in a paper published by Nature Medicine expanding on the findings. Some key findings from the trial were announced in February. FFA stands for focus-forming assay, or a way to quantify viruses like SARS-CoV-2; qPCR refers to quantitative polymerase chain reaction testing. Both were used to test viral load, the amount of virus present in an individual that could lead to transmission. SARS-CoV-2, also known as the CCP (Chinese Communist Party) virus, causes COVID-19. “Our data clearly show that SARS-CoV-2 viral shedding occurs at high levels irrespective of symptom severity, …