{"id":2321,"date":"2021-03-22T15:09:19","date_gmt":"2021-03-22T20:09:19","guid":{"rendered":"https:\/\/mathewkiangcom.local\/?p=2321"},"modified":"2021-09-15T16:15:53","modified_gmt":"2021-09-15T23:15:53","slug":"our-paper-looking-at-different-covid-19-testing-quarantine-strategies-for-air-travel","status":"publish","type":"post","link":"https:\/\/mathewkiangcom.local\/2021\/03\/22\/our-paper-looking-at-different-covid-19-testing-quarantine-strategies-for-air-travel\/","title":{"rendered":"Our paper looking at different COVID-19 testing\/quarantine strategies for air travel"},"content":{"rendered":"<span  class=\"x-dropcap\" >O<\/span>ur\u00a0<a href=\"http:\/\/www.thelancet.com\/journals\/laninf\/article\/PIIS1473-3099(21)00134-1\/fulltext\">new\u00a0<em>The Lancet Infectious Diseases<\/em> paper<\/a> is out. We used microsimulation to evaluate different testing and quarantine strategies for air travel. The simulation incorporates day-specific test sensitivity, asymptomatic infections, and differential levels of adherence to self-quarantine. Given all the travel for holidays and spring break, we&#8217;re hoping it provides some useful insight for airlines and public health departments.<\/p>\n<p><!--more--><a href=\"https:\/\/mathewkiangcom.local\/weblog\/wp-content\/uploads\/2021\/03\/Screen-Shot-2021-03-21-at-6.46.00-PM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-2319 size-large\" src=\"https:\/\/mathewkiangcom.local\/weblog\/wp-content\/uploads\/2021\/03\/Screen-Shot-2021-03-21-at-6.46.00-PM-1024x839.png\" alt=\"\" width=\"1024\" height=\"839\" srcset=\"https:\/\/mathewkiangcom.local\/wp-content\/uploads\/2021\/03\/Screen-Shot-2021-03-21-at-6.46.00-PM-1024x839.png 1024w, https:\/\/mathewkiangcom.local\/wp-content\/uploads\/2021\/03\/Screen-Shot-2021-03-21-at-6.46.00-PM-450x369.png 450w, https:\/\/mathewkiangcom.local\/wp-content\/uploads\/2021\/03\/Screen-Shot-2021-03-21-at-6.46.00-PM-305x250.png 305w, https:\/\/mathewkiangcom.local\/wp-content\/uploads\/2021\/03\/Screen-Shot-2021-03-21-at-6.46.00-PM-768x629.png 768w, https:\/\/mathewkiangcom.local\/wp-content\/uploads\/2021\/03\/Screen-Shot-2021-03-21-at-6.46.00-PM-1536x1258.png 1536w, https:\/\/mathewkiangcom.local\/wp-content\/uploads\/2021\/03\/Screen-Shot-2021-03-21-at-6.46.00-PM-2048x1678.png 2048w, https:\/\/mathewkiangcom.local\/wp-content\/uploads\/2021\/03\/Screen-Shot-2021-03-21-at-6.46.00-PM-100x82.png 100w, https:\/\/mathewkiangcom.local\/wp-content\/uploads\/2021\/03\/Screen-Shot-2021-03-21-at-6.46.00-PM-1064x872.png 1064w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/p>\n<p>A couple related items:<\/p>\n<ul>\n<li>Our (fully reproducible) <a href=\"https:\/\/github.com\/mkiang\/airline_testing_strategies\">code is available on Github<\/a>.<\/li>\n<li>The data we used for all simulations is too large for Github but is <a href=\"https:\/\/osf.io\/87kga\/\">available on OSF<\/a>.<\/li>\n<li>The published version is substantially improved (thanks to six very thorough peer reviewers), but here&#8217;s <a href=\"https:\/\/www.medrxiv.org\/content\/10.1101\/2020.12.08.20246132v1\">the original pre-print<\/a>.<\/li>\n<li>UCSF put out a <a href=\"https:\/\/www.ucsf.edu\/news\/2021\/03\/420111\/study-outlines-testing-strategies-safer-air-travel-during-pandemic\">press release here<\/a>.<\/li>\n<li>Nathan&#8217;s informative <a href=\"https:\/\/twitter.com\/NathanLo3579\/status\/1374145242232889345\">tweetorial about the paper is here<\/a>.<\/li>\n<li><a href=\"https:\/\/www.sfchronicle.com\/local\/article\/Rapid-tests-and-5-day-quarantines-could-help-16044869.php\">SF Chronicle coverage<\/a>.<\/li>\n<li>The\u00a0<a href=\"https:\/\/www.thelancet.com\/journals\/laninf\/article\/PIIS1473-3099(21)00614-9\/fulltext\">correction notice<\/a>\u00a0resulting from\u00a0<a href=\"https:\/\/www.thelancet.com\/journals\/laninf\/article\/PIIS1473-3099(21)00454-0\/fulltext\">Dr. Lee Altenberg&#8217;s letter<\/a>\u00a0which pointed out an error in how we calculated the post-quarantine infectious days. We thank Dr. Lee Altenberg for finding and reporting this error.<\/li>\n<li><a href=\"https:\/\/www.thelancet.com\/journals\/laninf\/article\/PIIS1473-3099(21)00562-4\/fulltext\">Our reply<\/a> to both Dr. Altenberg&#8217;s letter and <a href=\"https:\/\/www.thelancet.com\/journals\/laninf\/article\/PIIS1473-3099(21)00357-1\/fulltext\">Dr. Mohammad Shahid&#8217;s letter<\/a>.<\/li>\n<\/ul>\n<p>In addition to (hopefully) being useful, this project was a lot of fun \u2014 especially considering the urgency. A lot of time was saved because it was built on <a href=\"https:\/\/github.com\/etchin\/covid-testing\">open-source code<\/a> from <a href=\"https:\/\/academic.oup.com\/cid\/advance-article\/doi\/10.1093\/cid\/ciaa1383\/5939986\">another paper<\/a>. Still, this one went from an idea Nathan and I chatted about to a pre-print in a little over a month, went through expedited review (fun fact: that&#8217;s what the little bird icon is on the top of some\u00a0<em>Lancet<\/em> papers) in a month, then returned back to the journal with revisions and accepted in about another month, and finally went through a couple rounds of super helpful editorial revisions and proofing in a month.<\/p>\n<p>When it was all said and done, we went from an idea to a published manuscript in just under 5 months. I&#8217;ve literally had other papers under review for that entire duration \u2014\u00a0<em>The Lancet<\/em>\u00a0journals are not messing around when they call it expedited review. Special thanks to Elizabeth Chin for help with the coding infrastructure and Nathan Lo for supervising the whole thing.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>ur\u00a0new\u00a0The Lancet Infectious Diseases paper is out. We used microsimulation to evaluate different testing and quarantine strategies for air travel. The simulation incorporates day-specific test sensitivity, asymptomatic infections, and differential levels of adherence to self-quarantine. Given all the travel for holidays and spring break, we&#8217;re hoping it provides some useful insight for airlines and public health departments.<\/p>\n","protected":false},"author":1,"featured_media":2319,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[137],"tags":[],"_links":{"self":[{"href":"https:\/\/mathewkiangcom.local\/wp-json\/wp\/v2\/posts\/2321"}],"collection":[{"href":"https:\/\/mathewkiangcom.local\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mathewkiangcom.local\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mathewkiangcom.local\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mathewkiangcom.local\/wp-json\/wp\/v2\/comments?post=2321"}],"version-history":[{"count":13,"href":"https:\/\/mathewkiangcom.local\/wp-json\/wp\/v2\/posts\/2321\/revisions"}],"predecessor-version":[{"id":2386,"href":"https:\/\/mathewkiangcom.local\/wp-json\/wp\/v2\/posts\/2321\/revisions\/2386"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mathewkiangcom.local\/wp-json\/wp\/v2\/media\/2319"}],"wp:attachment":[{"href":"https:\/\/mathewkiangcom.local\/wp-json\/wp\/v2\/media?parent=2321"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mathewkiangcom.local\/wp-json\/wp\/v2\/categories?post=2321"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mathewkiangcom.local\/wp-json\/wp\/v2\/tags?post=2321"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}