INSUFFICIENT TESTS: “We’re not able to do the surveillance that we would want to do,” says heads CDC’s lab🧪 task force . Many labs are racing to develop antibody tests, which do not diagnose acute 🦠 cases—but clarifies questions about #SARSCoV2’s spread.
sciencemag.org/news/2020/02/l…
sciencemag.org/news/2020/02/l…
2) “The world is in the dark about the epidemic’s real scale and speed, because existing tests have limited powers—and testing is far too spotty. “We are underestimating how common this infection is,” cautions Jeremy Farrar, head of the Wellcome Trust.”
3) Viral load even after symptoms disappear: Clemens Wendtner, who has been treating some of the German patients, said that of 4 #COVID19 patients he had been treating for four weeks, 3 were still PCR-positive even though based on symptoms they would have [seemed cleared].
