") no-repeat center center;background-size:10px 16px;content:' '}@media(min-width:768px){.UeJNJ::before{display:none}}.gSkBXd{aspect-ratio:16/9}.rAFIl{width:100%;box-sizing:border-box}@media(min-width:768px){.rAFIl{max-width:634px}}@media(min-width:1250px){.rAFIl{max-width:622px}}.dLkuvY{display:flex;width:auto;box-sizing:border-box;align-items:center;justify-content:flex-start;gap:4px;color:#ec1a2e;color:light-dark(#ec1a2e,#ec1a2e)}.jrwZqm{display:block;font:bold 14px/20px 'Indy Sans','Indy Sans Fallback',sans-serif;text-decoration-line:underline;margin-block:0;text-align:center}.dHXFkr{display:inline-flex;align-items:center;justify-content:center;gap:4px}.dHXFkr:hover .sc-aja53j-2,.dHXFkr:hover .sc-a5wy94-0{color:#ac2a2c;color:light-dark(#ac2a2c,#f58992)}.lcJUSj{font:normal 16px/20px 'Indy Sans','Indy Sans Fallback',sans-serif}.hJPJVF{display:flex;position:relative;overflow:hidden;width:auto;height:40px;flex-direction:column;order:-1;gap:8px;opacity:1;transition:all .5s ease-in-out;transition-behavior:allow-discrete}.hJPJVF::after{--fade-from:rgba(255,255,255,0);--fade-mid:rgba(255,255,255,0.5);--fade-to:#fff;position:absolute;bottom:0;left:0;z-index:1;width:100%;height:40px;background-image:linear-gradient(to bottom,var(--fade-from) 0,var(--fade-mid) 50%,var(--fade-to) 100%);content:'';opacity:1;pointer-events:none;transition:opacity 150ms ease-out}@supports(color:light-dark(red,red)){.hJPJVF::after{--fade-from:light-dark(rgba(255,255,255,0),rgba(0,0,0,0))}}@supports(color:light-dark(red,red)){.hJPJVF::after{--fade-mid:light-dark(rgba(255,255,255,0.5),rgba(0,0,0,0.5))}}@supports(color:light-dark(red,red)){.hJPJVF::after{--fade-to:light-dark(#fff,#000)}}@media(min-width:768px){.PdmgT{order:-1}}@media(min-width:768px){.eMEmGu{display:flex;position:relative;align-items:flex-start;margin-top:12px}}@media(min-width:1000px){.lfyduH .taboola{display:none}}.lfyduH:has(#taboola-carousel-thumbnails){min-height:426px}.lfyduH:has(#taboola-mid-article-thumbnails-crime){min-height:405px}@media(min-width:1000px){.lfyduH:has(#taboola-carousel-thumbnails),.lfyduH:has(#taboola-mid-article-thumbnails-crime){min-height:0}}.iUtUOL .tp-container-inner,.iUtUOL .sc-1suqprf-0{position:relative;box-shadow:0 -22px 16px 22px rgba(255,255,255,0.95);box-shadow:0 -22px 16px 22px light-dark(rgba(255,255,255,0.95),rgba(0,0,0,0.95))}.iUtUOL.closed{display:none}.cAWJSb{width:32px}.cAWJSb,.cAWJSb:focus{color:#627aac;color:light-dark(#627aac,#627aac)}.cAWJSb:hover,.cAWJSb:active,.cAWJSb:focus-visible{color:#9cabcb;color:light-dark(#9cabcb,#9cabcb)}@media(min-width:768px){.cAWJSb.mobile-only{display:none}}.kvSIBL{width:32px}.kvSIBL,.kvSIBL:focus{color:#4e4e4e;color:light-dark(#4e4e4e,#4e4e4e)}.kvSIBL:hover,.kvSIBL:active,.kvSIBL:focus-visible{color:#919191;color:light-dark(#919191,#919191)}@media(min-width:768px){.kvSIBL.mobile-only{display:none}}.fAfNYP{width:32px}.fAfNYP,.fAfNYP:focus{color:#25d366;color:light-dark(#25d366,#25d366)}.fAfNYP:hover,.fAfNYP:active,.fAfNYP:focus-visible{color:#66e093;color:light-dark(#66e093,#66e093)}@media(min-width:768px){.fAfNYP.mobile-only{display:none}}.jOXOdf{width:32px}.jOXOdf,.jOXOdf:focus{color:#ec1a2e;color:light-dark(#ec1a2e,#ec1a2e)}.jOXOdf:hover,.jOXOdf:active,.jOXOdf:focus-visible{color:#f58992;color:light-dark(#f58992,#f58992)}@media(min-width:768px){.jOXOdf.mobile-only{display:none}}.dzqQwN{display:flex;gap:12px}.dFzDMM .sc-17yxc4y-0{display:none}.dFzDMM:hover .sc-17yxc4y-0,.dFzDMM.bookmark-button-saved .sc-17yxc4y-0{display:block}.dFzDMM:hover .sc-17yxc4y-1,.dFzDMM.bookmark-button-saved .sc-17yxc4y-1{display:none}.dFzDMM.bookmark-button-saved .sc-17yxc4y-0{display:block}.dFzDMM.bookmark-button-saved .sc-17yxc4y-1{display:none}.dFzDMM.bookmark-button-saved:hover .sc-17yxc4y-0{display:none}.dFzDMM.bookmark-button-saved:hover .sc-17yxc4y-1{display:block}.iJqvPe{display:inline-block;width:32px;height:32px;color:#70a5a7;color:light-dark(#70a5a7,#70a5a7)}.sQzGY{display:flex;flex-direction:row;justify-content:center;gap:12px}.cNueyK{display:flex;position:relative;justify-content:center}@media(min-width:768px){.cNueyK{justify-content:flex-end;padding-top:12px;margin:0}}.dUmHef{display:flex}.sticky .dUmHef{flex-direction:column}.igSthU{overflow:hidden;height:23px;margin-bottom:8px;border-bottom:0;clear:both}@media(min-width:768px){.igSthU{height:25px}}.fvIzys{display:inline-block;flex-shrink:0;margin:0 12px 0 0;font:bold 14px/normal 'Indy Sans','Indy Sans Fallback',sans-serif}.fvIzys::after{content:':'}.knjHva{display:inline-block;margin-right:12px;margin-bottom:4px;color:#222;color:light-dark(#222,#fff);font:normal 14px/1.29 'Indy Sans','Indy Sans Fallback',sans-serif;text-decoration:underline}.knjHva::first-letter {text-transform:capitalize}@media(min-width:1000px){.subscribed .gryCYY{margin-top:-184px}.article-feature:not(.article-feature-video) .subscribed .gryCYY{margin-top:-407px}}.gryCYY>p{margin:16px 0}.article-premium .gryCYY>p{line-height:27px}.gryCYY>h2{font-size:21px}.article-climate .gryCYY>h2{color:#ec1a2e;color:light-dark(#ec1a2e,#ec1a2e)}.article-sgi .gryCYY>h2{color:#ec1a2e;color:light-dark(#ec1a2e,#ec1a2e)}.gryCYY>p:first-child{margin-top:0}.gryCYY span:first-child~p:first-of-type{margin-top:0}.FtcnY{display:flex;position:relative;max-width:100%;min-height:600px;justify-content:center;margin:0 auto;background-color:transparent;clear:both}@media(min-width:1000px){.FtcnY{min-height:450px}}.teads .FtcnY{display:block}.FtcnY [data-mpu]{position:sticky;top:16px}@media(min-width:1000px){.cCcguK{display:none}}.cCcguK[data-mpu1]{min-height:600px}.cCcguK.pb-20{padding-bottom:20px}.dFpFuY{overflow:hidden;width:100%;box-sizing:border-box;margin-bottom:16px}@media(min-width:768px){.dFpFuY{max-width:634px}}@media(min-width:1250px){.dFpFuY{max-width:622px}}.dmMyEN{width:100%;box-sizing:border-box;padding:8px 12px 12px;border-top:8px solid #ec1a2e;border-top:8px solid light-dark(#ec1a2e,#ec1a2e);background-color:#fde8ea;background-color:light-dark(#fde8ea,#66000a)}@media(min-width:768px){.dmMyEN{padding-top:4px;padding-bottom:12px}}.fXvmgM{font:bold 22px/26px 'Indy Serif','Indy Serif Fallback',serif;margin:0 0 12px;text-align:center}@media(min-width:768px){.fXvmgM{font:bold 30px/34px 'Indy Serif','Indy Serif Fallback',serif;letter-spacing:-0.048px;margin-bottom:12px;text-align:left}}.ivTlwT{display:block;margin-bottom:12px}@media(min-width:768px){.ivTlwT{display:none}}.hfMbpT{display:flex;width:100%;box-sizing:border-box;align-items:center;justify-content:center;gap:4px;background-color:#fde8ea;background-color:light-dark(#fde8ea,#66000a);color:#ec1a2e;color:light-dark(#ec1a2e,#ec1a2e)}@media(min-width:768px){.hfMbpT{width:auto;justify-content:flex-start}}.dAuNha{display:block;font:bold 14px/20px 'Indy Sans','Indy Sans Fallback',sans-serif;text-decoration-line:underline;margin-block:0;text-align:center}.jiDyot{display:inline-flex;align-items:center;justify-content:center;gap:4px}.jiDyot:hover .sc-hez36s-5,.jiDyot:hover .sc-a5wy94-0{color:#ac2a2c;color:light-dark(#ac2a2c,#f58992)}.laZbyn{font:normal 16px/20px 'Indy Sans','Indy Sans Fallback',sans-serif}.juUDRT{display:flex;width:100%;flex-direction:column}@media(min-width:768px){.juUDRT{display:flow-root;gap:24px;transition:margin-bottom .3s ease-in-out}}.kRWakq{display:flex;width:100%;flex-direction:column;align-items:center;justify-content:center}@media(min-width:768px){.kRWakq{position:relative;z-index:1;width:212px;flex-shrink:0;justify-content:flex-start;margin-left:24px;float:right}}.eJjJXF{display:none;flex-direction:row;align-items:center;justify-content:center;gap:8px;margin-top:8px}@media(min-width:768px){.eJjJXF{display:flex;margin-top:12px}}.dLfZIO{display:flex;width:100%;align-items:center;justify-content:center;gap:8px;margin-top:8px;margin-bottom:12px}@media(min-width:768px){.dLfZIO{display:none}}@media(min-width:768px){.cqPbFA{order:-1}}.jZSKtc .sc-aja53j-5::after{--fade-from:rgba(253,232,234,0);--fade-mid:rgba(253,232,234,0.5);--fade-to:#fde8ea}@media(min-width:360px){.jZSKtc .sc-aja53j-5 .sc-aja53j-7{display:none}}@supports(color:light-dark(red,red)){.jZSKtc .sc-aja53j-5::after{--fade-from:light-dark(rgba(253,232,234,0),rgba(102,0,10,0))}}@supports(color:light-dark(red,red)){.jZSKtc .sc-aja53j-5::after{--fade-mid:light-dark(rgba(253,232,234,0.5),rgba(102,0,10,0.5))}}@supports(color:light-dark(red,red)){.jZSKtc .sc-aja53j-5::after{--fade-to:light-dark(#fde8ea,#66000a)}}.cKWiEj{margin:0 0 24px;font:normal 16px/20px 'Indy Sans','Indy Sans Fallback',sans-serif}.huxBsk{font:bold 16px/20px 'Indy Sans','Indy Sans Fallback',sans-serif}.jaiOuh{display:flex;min-height:600px;justify-content:center}@media(min-width:1000px){.jaiOuh{min-height:450px}}.jasvOK{min-height:600px}@media(min-width:1000px){.jasvOK{min-height:450px}}.jasvOK.mobile-only{display:block}@media(min-width:1000px){.jasvOK.mobile-only{display:none}}.jasvOK.desktop-only{display:none}@media(min-width:1000px){.jasvOK.desktop-only{display:block;margin-bottom:16px}}.jasvOK.desktop-only+p{margin-top:0}.jasvOK .third-party-ad{position:sticky;top:16px}.bYBoJE{width:100%;flex-grow:1}.bYBoJE .social-share{width:100%;padding-top:10px;padding-bottom:20px}@media(min-width:768px){.bYBoJE .social-share{justify-content:flex-start}}.bYBoJE .social-share.sticky{display:none}@media(min-width:1000px){.bYBoJE .social-share.sticky{display:flex;position:sticky;top:14px;width:34px;flex-direction:column;padding-top:0;margin-top:0;margin-left:-25%}.bYBoJE .social-share.sticky .sc-mgcah7-0{margin:0 0 16px}.article-feature-video .bYBoJE .social-share.sticky{margin-top:0}.article-feature:not(.article-feature-video) .bYBoJE .social-share.sticky{margin-top:35%}}.bYBoJE.sponsored-article img,.bYBoJE.sponsored-article video{width:100%;max-width:602px;height:auto}.bYBoJE.sponsored-article iframe{max-width:602px;max-height:400px}.bYBoJE .under-article-prompt-donations{padding-bottom:8px;margin-top:-3px}.bYBoJE .big-letter{--color:#222;display:flex;position:relative;width:0;height:0;align-items:center;justify-content:center;padding:40px;margin-top:22px;margin-right:12px;border:1px solid var(--color);float:left;font:normal 52px/1 'Indy Serif','Indy Serif Fallback',serif;text-transform:uppercase}.bYBoJE .big-letter:first-child{margin-top:6px}.bYBoJE .big-letter::before{position:absolute;top:0;left:0;width:100%;height:100%;box-sizing:border-box;border:1px solid var(--color);border-radius:50%;content:''}.bYBoJE #taboola-below-article-1{min-height:2350px}@media(min-width:768px){.bYBoJE #taboola-below-article-1{min-height:3370px}}.bYBoJE #taboola-below-article-1-split-num-1{min-height:130px}@media(min-width:768px){.bYBoJE #taboola-below-article-1-split-num-1{min-height:415px}}.bYBoJE .sc-fwko30-0+.sc-1xtsh2b-0{margin-top:-16px}@media(min-width:768px){.bYBoJE{max-width:636px;margin:0}}@media(min-width:1000px){.bYBoJE{max-width:624px;margin:0}.bYBoJE.subscribed{max-width:636px}}@media(max-width:999px){.bYBoJE{padding-right:0}.bYBoJE .under-article-prompt-donations{margin-top:-18px}}.bYBoJE .anchor-nav-header{scroll-margin-top:79px}.bYBoJE .anchor-nav-header a{color:#222;color:light-dark(#222,#fff)}.bYBoJE .anchor-nav-header a:hover{color:#222;color:light-dark(#222,#fff)}@supports(color:light-dark(red,red)){.bYBoJE .big-letter{--color:light-dark(#222,#fff)}}.liYrJc{display:flex;flex-wrap:wrap;justify-content:flex-start;margin-bottom:8px;color:#d3d3d3;color:light-dark(#d3d3d3,#d3d3d3);font:normal 16px/20px 'Indy Sans','Indy Sans Fallback',sans-serif}@media(min-width:768px){.liYrJc{width:70%;align-items:center;justify-content:flex-start;margin-bottom:0;font:normal 16px/24px 'Indy Sans','Indy Sans Fallback',sans-serif}}@media(min-width:1000px){.liYrJc{width:70%;margin-bottom:0}}.dMNxBE{display:flex;height:20px;margin:0 12px 8px 0}.article-voices .dMNxBE{height:auto}@media(min-width:425px){.article-voices .dMNxBE{height:20px}}.dMNxBE::before{display:inline-block;align-self:center;margin-top:1px;margin-right:12px;content:'\2022';transform:scale(1.5)}.dMNxBE:first-child::before{content:none}@media(min-width:768px){.dMNxBE{height:24px;margin-bottom:0}.dMNxBE::before{margin-top:2px}}.dMNxBE time{display:block}.dMNxBE time::first-letter {text-transform:capitalize}.efpEY{display:inline-block;margin:0 12px 8px 0;color:#ef4757;color:light-dark(#ef4757,#ef4757);font:bold 16px/20px 'Indy Sans','Indy Sans Fallback',sans-serif;letter-spacing:-0.5px}.efpEY:hover,.efpEY:active{color:#f58992;color:light-dark(#f58992,#f58992)}@media(min-width:768px){.efpEY{margin-bottom:0}}.fefQOD{margin:0 4px 8px 0}.fefQOD::before{display:inline-block;margin-top:2px;margin-right:12px;color:#d3d3d3;color:light-dark(#d3d3d3,#d3d3d3);content:'\2022';transform:scale(1.5)}.fefQOD:first-child::before{display:none}@media(min-width:768px){.fefQOD{margin-bottom:0}}.bMRmfY{display:flex;justify-content:flex-start;padding:0;margin:0 0 16px}@media(min-width:768px){.bMRmfY{display:flex;width:30%;align-items:center;justify-content:flex-end;margin:0}}@media(min-width:1000px){.bMRmfY{width:30%}}.dfBarH{padding-top:0;border-top:0;border-bottom:0}@media(min-width:768px){.dfBarH{display:flex;flex-flow:row wrap;padding-bottom:16px}.dfBarH .sc-mzrbq8-0{order:1}.dfBarH .sc-mzrbq8-6{order:2}}@media(min-width:1000px){.dfBarH{flex-direction:row}}.gkrVhQ{padding:16px 12px 12px;text-align:left;font:bold 14px/18px 'Indy Sans','Indy Sans Fallback',sans-serif}@media(min-width:768px){.gkrVhQ{padding:16px 16px 12px}}.article-infact .gkrVhQ{padding:16px 0}@media(min-width:1000px){.gkrVhQ{padding:24px 0 19px}.article-feature .gkrVhQ{max-width:968px;margin:0 auto}}.gkrVhQ a{color:#fff;color:light-dark(#fff,#fff)}.gkrVhQ a:hover{color:#f58992;color:light-dark(#f58992,#f58992)}.gkrVhQ a:hover::after{color:#fff;color:light-dark(#fff,#fff)}.gkrVhQ a::after{margin-right:4px;margin-left:4px;content:'>'}.gkrVhQ a:last-child::after{display:none}.gbPKFW{margin:0 0 20px;letter-spacing:0}.bulCXp{margin:0;color:#d3d3d3;color:light-dark(#d3d3d3,#d3d3d3);font:normal 16px/20px 'Indy Sans','Indy Sans Fallback',sans-serif}@media(min-width:768px){.bulCXp{font:normal 18px/22px 'Indy Sans','Indy Sans Fallback',sans-serif}}@media(min-width:1000px){.bulCXp{font:normal 20px/24px 'Indy Sans','Indy Sans Fallback',sans-serif}}.bulCXp p{font:inherit}.article-feature .bulCXp a{font-weight:bold}.gOoYlj{max-width:968px;margin:0 auto;background:#222;background:light-dark(#222,#222)}@media(min-width:1000px){.parallax .gOoYlj{max-width:1240px}}.fdtMsm{font:bold 32px/36px 'Indy Serif','Indy Serif Fallback',serif;letter-spacing:-0.0156em}@media(min-width:768px){.fdtMsm{font:bold 44px/48px 'Indy Serif','Indy Serif Fallback',serif;letter-spacing:-0.0113em}}@media(min-width:1000px){.fdtMsm{font:bold 54px/58px 'Indy Serif','Indy Serif Fallback',serif;letter-spacing:-0.0092em}}.cuYuhQ{background:#222;background:light-dark(#222,#222)}.cuYuhQ .sc-qvufca-1{max-width:968px;background:#222;background:light-dark(#222,#222)}.cuYuhQ .sc-qvufca-0{margin:0}@media(max-width:999px){.cuYuhQ .sc-qvufca-0{margin:0 12px 0}}.cuYuhQ .sc-qvufca-2,.cuYuhQ .sc-1cmj4ml-0{color:#fff;color:light-dark(#fff,#fff)}.cuYuhQ .sc-qvufca-2{margin:0 0 20px}.cuYuhQ .sc-1cmj4ml-0{margin-bottom:16px}.eBMXOi{max-width:100%;clear:both}@media(min-width:1000px){.kFNaRc .sc-qvufca-1{padding:0 16px}}.fzuCgM{overflow:hidden;height:0;color:transparent}.fmcHss{max-width:100%;margin:0 0 20px}.fmcHss.sticky{position:sticky;top:16px}.hlxBlR{min-height:600px}.hlxBlR #mpu1,.hlxBlR #sidebar1{position:sticky;top:16px}.MxpAk{min-height:250px}.clQXMC{max-width:100%}.eEtnsS{margin:0 0 6px;color:#646464;color:light-dark(#646464,#bdbdbd);font-family:'Indy Sans','Indy Sans Fallback',sans-serif;font-size:15px}.PbXHI{margin:0 0 12px}.hVucHy{height:380px}.pAheK{width:100%;height:51px}.lgmjvx{margin-bottom:16px;border-bottom:1px solid #919191;border-bottom:1px solid light-dark(#919191,#646464)}.gSAEA-d{margin-bottom:16px}.gSAEA-d [role='listitem']{position:relative;margin-bottom:12px;border-bottom:1px solid #d3d3d3;border-bottom:1px solid light-dark(#d3d3d3,#919191)}.gSAEA-d [role='listitem'] .sc-u4n1j-0{display:flex;position:absolute;bottom:16px;left:10px;width:32px;height:32px;align-items:center;justify-content:center;border-radius:50%;background-color:#ec1a2e;background-color:light-dark(#ec1a2e,#ec1a2e)}.gSAEA-d [role='listitem'] .sc-u4n1j-0>svg{width:90%;fill:#fff;fill:light-dark(#fff,#000);stroke:transparent}.gSAEA-d [role='listitem']:first-child{display:block;padding-bottom:0;margin-bottom:12px}.gSAEA-d [role='listitem']:first-child .sc-u4n1j-0{top:-15px;bottom:auto;left:12px}.gSAEA-d [role='listitem']:first-child>*:first-child{display:block;width:100%;height:205px}.gSAEA-d [role='listitem']:first-child>*:last-child{--content-bg:#222;--content-bg-opaque:rgba(34,34,34,0.7);position:absolute;bottom:0;width:100%;padding:28px 12px 12px;background:linear-gradient(to top,var(--content-bg) 70%,var(--content-bg-opaque) 100%) no-repeat;color:#fff;color:light-dark(#fff,#222);font-size:17px;font-weight:bold}.gSAEA-d [role='listitem']:last-child{margin-bottom:0;border-bottom:0 none}@supports(color:light-dark(red,red)){.gSAEA-d [role='listitem']:first-child>*:last-child{--content-bg:light-dark(#222,#222)}}@supports(color:light-dark(red,red)){.gSAEA-d [role='listitem']:first-child>*:last-child{--content-bg-opaque:light-dark(rgba(34,34,34,0.7),rgba(34,34,34,0.7))}}.fgtiQY{min-height:1924px}@media(max-width:767px){.fgtiQY{display:none}}.eqQkhO{width:308px;height:100%;margin-left:auto}.eqQkhO.hidden{display:none}@media(max-width:999px){.eqQkhO{display:none}}.article-liveblog .dzfINj{background-color:#f7f7f7;background-color:light-dark(#f7f7f7,#222)}.jBkNwU{justify-content:center}.cumEve{justify-content:center}@keyframes hqVOOe1548920386{from{transform:translateX(0)}to{transform:translateX(-100%)}}@keyframes bReFEb1548920386{from{transform:translateX(100%)}to{transform:translateX(0)}}
Stay up to date with notifications from The Independent Notifications can be managed in browser preferences.
Not now Yes please
News World Americas US politics FDA warns four companies over ‘inaccurate’ Covid fever scanners The FDA released a public warning which said some scanners could be inaccurate and ‘present potentially serious public health risks’
CDC sounds the alarm on rise of Covid variants Your support helps us to tell the story From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or producing our latest documentary, 'The A Word', which shines a light on the American women fighting for reproductive rights, we know how important it is to parse out the facts from the messaging.
At such a critical moment in US history, we need reporters on the ground. Your donation allows us to keep sending journalists to speak to both sides of the story.
The Independent is trusted by Americans across the entire political spectrum. And unlike many other quality news outlets, we choose not to lock Americans out of our reporting and analysis with paywalls. We believe quality journalism should be available to everyone, paid for by those who can afford it.
Your support makes all the difference. Read more The US Food and Drug Administration (FDA ) has issued a public warning over Covid fever scanners and sent letters to four companies selling the devices, following new research which suggested they were inaccurate.
The Washington Post reported on Thursday that the fever scanners were being used throughout the US to detect possible cases of Covid, at places such as airports and sports stadiums.
But surveillance research body, IPVM , found that seven fever scanners could read temperatures incorrectly — recording a person suffering a feverish 100.4F temperature as an ordinary 98F core temperature.
Responding to the Post’s report, the FDA released a public alert on Thursday which said some scanners could be inaccurate and “present potentially serious public health risks”.
Four companies were sent warning letters from the FDA for selling devices that were portrayed as fever scanners for Covid, and were asked to cease trading the products.
Read more: Johnson & Johnson is safe, FDA says, as third US Covid vaccine passes major hurdle
The companies were Certify Global Inc., Kogniz Inc., Opgal Optronic Industries Ltd. and Thermavis.
In the letter to one UK-based company, Thermavis, the FDA said a “Thermal Screening Camera” sold online in the US was “without marketing approval, clearance, or authorisation from FDA”.
The letter added that thermal screening devices risked “incorrectly detecting a normal human body temperature” and that such inaccuracies were more present when scanning “multiple individuals simultaneously”.
Representatives for four of the firms in the IPVM study told the Post that the devices contain software which allows them to “self-calibrate” to their environments, and disputed claims of inaccuracy.
In a statement to The Independent , a Certify Global spokesperson wrote that the company received the FDA warning on Thursday, regarding multi-scanning devices.
“Our primary offering is the single-scanning SnapXT device which is in the process of becoming FDA approved. Our most recent offering, the InfinityX, does have multi-scanning capabilities – but as a swift reaction to the FDA letter, we are no longer offering this product in order to look into the FDA’s concerns. As it is a new product, there are very few InfinityX devices in use currently and we will be reaching to our existing customers directly,” the spokesperson wrote.
A researcher on thermology, Peter Plassmann, said that such devices proved some companies were overselling the capabilities of fever scanners for detecting Covid.
“That’s generally the problem with infrared imaging: It’s so deceptively easy,” said Mr Plassmann. “You point the camera at somebody, you get a nice colourful image and you get a temperature reading. Great. But in reality, it’s all rubbish. There are so many factors you need to consider.”
IPVM found that over 200 firms started selling thermal scanners for Covid following a decision by the FDA in April to cease testing and reviewing devices “that did not ‘create an undue risk’, due to the public health emergency.
According to studies by the Centers for Disease Control and Prevention, roughly 40 per cent of those infected with coronavirus will not have a fever — meaning the use of fever scanners is ineffective, reported The Post.
The Independent has approached all four companies who received FDA warning letters for comment.
This article has been updated
Thank you for registering Please refresh the page or navigate to another page on the site to be automatically logged in Please refresh your browser to be logged in
Join our commenting forum
Join thought-provoking conversations, follow other Independent readers and see their replies
Comments