<html><body><span style="font-family:Verdana; color:#000000; font-size:10pt;"><div><a target="_blank" href="https://www.livescience.com/coronavirus-antibodies-widespread-in-santa-clara.html" style="">https://www.livescience.com/coronavirus-antibodies-widespread-in-santa-clara.html</a></div><div>Preprint below.</div><div><br></div><div>Has this been discussed already?</div><div>Seems like a fairly key new piece of information in <span style="font-size: 10pt;">the covid19 version of the Drake Equation (with a time component).</span></div><div><span style="font-size: 10pt;">This seems to be a decent guess at the fraction truly infected number.</span></div><div><br></div><div><br></div><div>Of course, there are self-selection effects on the population, but they attempted to control for them it looks like. Also, none of the antibody tests has been certified by the feds yet.</div><div><br></div><div><br></div><div>If you know of any other antibody testing that has better randomization, please post!</div><div><br></div><div>-Jim</div><div><br></div><div><br></div><div>preprint:</div><div style=""><a target="_blank" href="https://www.medrxiv.org/content/10.1101/2020.04.14.20062463v1?__cf_chl_jschl_tk__=6eed0f382928d377843071bf75b21bd8cd3f6e1a-1587330720-0-AcFcOZnNzxiZ0uUfp5P0sDRMuIV1ohSGTGDkjjCIG2bjSq-JmBrCrxKWqc2pXRybOqH0j1k9r5srJiQ1tMR8e0y_biF6fNLtAxCFYZ0o_jUEnG2JyN-bpaejc1TultdhSuvu-7UjEYayt7w7eReBRPCwcVoELD5w5zyIfTV-7Dc2ij8dftVX9HPqMMLYaT1QNkQMMgPhIxCLa-ixudM8FiD7HrlOIry3hSn6XzoaG9EhPOK4K3B2t2_OiHPKFEs4QyviLCUouYRl9CWfaUNDNzt-0vXLsXeR1FtnJYqgWeGir26ZyNQkZ4qxqZ1LE5ESDfPTq23pVeZDiSjQk5D_oyo" style="">https://www.medrxiv.org/content/10.1101/2020.04.14.20062463v1?__cf_chl_jschl_tk__=6eed0f382928d377843071bf75b21bd8cd3f6e1a-1587330720-0-AcFcOZnNzxiZ0uUfp5P0sDRMuIV1ohSGTGDkjjCIG2bjSq-JmBrCrxKWqc2pXRybOqH0j1k9r5srJiQ1tMR8e0y_biF6fNLtAxCFYZ0o_jUEnG2JyN-bpaejc1TultdhSuvu-7UjEYayt7w7eReBRPCwcVoELD5w5zyIfTV-7Dc2ij8dftVX9HPqMMLYaT1QNkQMMgPhIxCLa-ixudM8FiD7HrlOIry3hSn6XzoaG9EhPOK4K3B2t2_OiHPKFEs4QyviLCUouYRl9CWfaUNDNzt-0vXLsXeR1FtnJYqgWeGir26ZyNQkZ4qxqZ1LE5ESDfPTq23pVeZDiSjQk5D_oyo</a></div><div><br></div><div><br></div><div><br></div><div><br></div> </span></body></html>