{"id":8574,"date":"2018-01-13T15:59:22","date_gmt":"2018-01-13T20:59:22","guid":{"rendered":"https:\/\/blogs.nejm.org\/hiv-id-observations\/?p=8574"},"modified":"2018-01-13T15:59:22","modified_gmt":"2018-01-13T20:59:22","slug":"just-wondering-antibiotics-cough-pjp-vs-pcp-tb-sniffing-rats-raw-water-quick-id-items-ponder","status":"publish","type":"post","link":"https:\/\/blogs.nejm.org\/hiv-id-observations\/index.php\/just-wondering-antibiotics-cough-pjp-vs-pcp-tb-sniffing-rats-raw-water-quick-id-items-ponder\/2018\/01\/13\/","title":{"rendered":"Just Wondering:  Antibiotics for Cough, PJP vs. PCP, TB-Sniffing Rats, Raw Water, and Other Quick ID Items to Ponder"},"content":{"rendered":"<p><div id=\"attachment_8586\" style=\"width: 272px\" class=\"wp-caption alignright\"><a href=\"https:\/\/blogs.nejm.org\/hiv-id-observations\/wp-content\/uploads\/sites\/2\/2018\/01\/Skiing_in_the_East_LCCN98514616.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-8586\" class=\"wp-image-8586\" src=\"https:\/\/blogs.nejm.org\/hiv-id-observations\/wp-content\/uploads\/sites\/2\/2018\/01\/Skiing_in_the_East_LCCN98514616.jpg\" alt=\"\" width=\"262\" height=\"405\" srcset=\"https:\/\/blogs.nejm.org\/hiv-id-observations\/wp-content\/uploads\/sites\/2\/2018\/01\/Skiing_in_the_East_LCCN98514616.jpg 414w, https:\/\/blogs.nejm.org\/hiv-id-observations\/wp-content\/uploads\/sites\/2\/2018\/01\/Skiing_in_the_East_LCCN98514616-194x300.jpg 194w\" sizes=\"auto, (max-width: 262px) 100vw, 262px\" \/><\/a><p id=\"caption-attachment-8586\" class=\"wp-caption-text\">Source: Work Projects Administration Poster Collection [Public domain], via Wikimedia Commons<\/p><\/div>Here are some &#8220;quick questions&#8221; with an ID theme for people to consider as we head into week 3 of 52 of this new year.<\/p>\n<p>Just think, by the end of next week, we&#8217;ll be nearly 6% done with the new year. How time flies!<\/p>\n<p>For the various items below, if people know the answers, or want to speculate, have at it in the comments section.<\/p>\n<ul>\n<li><strong>For patients with a nagging cough, what is the median time before they receive an antibiotic?<\/strong> I&#8217;m referring to actual clinical practice, also known as &#8220;the real world.&#8221; And break it down between adults and kids, please.<\/li>\n<li><strong>And for these same treated patients, what percentage receive azithromycin?\u00a0<\/strong>One estimate has it as 99.9621%.<\/li>\n<li><strong>Since vancomycin plus piperacillin-tazobactam <a href=\"https:\/\/academic.oup.com\/cid\/article\/64\/2\/116\/2698878\" target=\"_blank\" rel=\"noopener\">increases the risk of acute kidney injury<\/a>, does this mean less empiric &#8220;Vancosyn&#8221; in acute care hospitals? <\/strong>Anecdotally, I <em>think<\/em> it&#8217;s having an effect at our hospital &#8212; time will tell.<\/li>\n<li><strong>When will PJP replace PCP as the preferred abbreviation for <em>Pneumocystis jirovecii<\/em> pneumonia?<\/strong> More and more residents and fellows seem to be using the former, so that day will come soon. Sorry old-timers!<\/li>\n<li><strong>In low TB prevalence regions, what percentage of patients admitted to the hospital with a <em>low clinical suspicion of TB<\/em> but who undergo a TB rule out &#8220;just in case&#8221; actually have TB?\u00a0<\/strong>One estimate has it at 0.0379% (the inverse of the azithromycin estimate above &#8230; shocking coincidence). Only our careful Infection Control colleagues can say if this is worth it.<\/li>\n<li><strong>When will improved approaches to Lyme testing be available in the clinic?<\/strong>\u00a0Whether it&#8217;s <a href=\"https:\/\/academic.oup.com\/cid\/advance-article-abstract\/doi\/10.1093\/cid\/cix943\/4706288\" target=\"_blank\" rel=\"noopener\">serologic tests<\/a>, or\u00a0<a href=\"http:\/\/stm.sciencemag.org\/content\/9\/403\/eaal2717\" target=\"_blank\" rel=\"noopener\">metabolic changes<\/a>, or (even better), a reliable PCR or antigen test, here&#8217;s hoping this happens soon. Spoiler alert if you haven&#8217;t listened to <a href=\"https:\/\/academic.oup.com\/ofid\/article\/4\/4\/ofx266\/4781496\" target=\"_blank\" rel=\"noopener\">this podcast<\/a>\u00a0&#8212; and what are you waiting for? &#8212; but this is my least favorite test.<\/li>\n<li><strong>Will the new zoster vaccine be more broadly adopted than our current one?<\/strong> It&#8217;s more effective, <a href=\"https:\/\/jamanetwork.com\/journals\/jamainternalmedicine\/article-abstract\/2666789?redirect=true\" target=\"_blank\" rel=\"noopener\">more cost-effective<\/a>, and will be easier to store and distribute, but vaccine acceptance is a tricky business. Factors will include ACIP guidelines, cost and insurance coverage, post-approval safety, and marketing &#8212; both to clinicians and direct to patients. Speaking of zoster&#8230;<\/li>\n<li><strong>Why do so many patients think you can &#8220;catch&#8221; a case of shingles from someone else?\u00a0<\/strong>Not referring to primary acquisition of VZV in a non-immune person &#8212; that of course can happen. I mean someone getting shingles (zoster) shortly after seeing another person with shingles. Patients continue to think this even after the whole difference between chicken pox and shingles is explained.<\/li>\n<li><strong>Did anti-vaccine stupidity reach a new high with <a href=\"https:\/\/www.theguardian.com\/australia-news\/2017\/dec\/22\/victorian-woman-loses-legal-bid-to-stop-children-from-receiving-measles-vaccinations?CMP=share_btn_tw\" target=\"_blank\" rel=\"noopener\">this recent Australian case<\/a>?<\/strong> The father, who had measles as a child, stated he passed on his &#8220;natural immunity&#8221; to the disease to his children, so they didn&#8217;t need the vaccine. Yikes. (H\/T to <a href=\"http:\/\/meadowparty.com\/blog\/\" target=\"_blank\" rel=\"noopener\">Keith Law<\/a> for the link.)<\/li>\n<li><strong>What proportion of ID doctors just say &#8220;isavuconazole&#8221; rather than the full name, &#8220;isavuconazonium&#8221;?<\/strong>\u00a0This critical (and I mean <em>critical<\/em>) issue came up right after it&#8217;s approval, but now that it&#8217;s been out for a while, I&#8217;m thinking nearly all of us say the shorter &#8220;isavuconazole&#8221; &#8212; which isn&#8217;t so easy to say itself.<\/li>\n<li><strong>Why can&#8217;t there be a <em>single<\/em> meningitis vaccine that includes all five serotypes?<\/strong>\u00a0No doubt there is some immunologic reason, right? Or is it part of the great conspiracy to make meningococcal immunization guidelines as confusing as possible?<\/li>\n<li><strong>Does oseltamivir actually work?<\/strong>\u00a0Depends who you ask. Efficacy debates notwithstanding, we sure use a whole lot of it.<\/li>\n<li><strong>Is there any medical reason to use the TDF versions of the elvitegravir- and rilpivirine-containing single tablet treatments for HIV?\u00a0<\/strong>I can&#8217;t think of one; always surprises me when encountering someone who hasn&#8217;t switched.<\/li>\n<li><strong>What&#8217;s the correct dose of daptomycin?<\/strong>\u00a0Now for the quick answer:\u00a0 Nobody knows!<\/li>\n<li><strong>Has the price of any other other oral antibiotic ever dropped as fast, and by as much, as linezolid?<\/strong> A year ago, two weeks of linezolid cost $3600; <a href=\"https:\/\/www.goodrx.com\/oxazolidinone-antibiotics\" target=\"_blank\" rel=\"noopener\">today it&#8217;s $150<\/a>. Wow.<\/li>\n<li><strong>How many people need to respond to a piece of academic spam &#8212; a bogus meeting invitation, or a predatory journal request for submissions &#8212; for these emails to become profitable for the senders?<\/strong> There has to be a number, or else this annoying stuff wouldn&#8217;t proliferate so wildly.<\/li>\n<\/ul>\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\">\n<p lang=\"en\" dir=\"ltr\">Per Journal of Infectious Diseases Editor-in-Chief Marty Hirsch, a short list of copycat predatory journals over the years &#8212; with my personal, all-inclusive favorite highlighted! <a href=\"https:\/\/twitter.com\/hashtag\/academicspam?src=hash&amp;ref_src=twsrc%5Etfw\">#academicspam<\/a> <a href=\"https:\/\/t.co\/4Xy7VEpDnw\">pic.twitter.com\/4Xy7VEpDnw<\/a><\/p>\n<p>&mdash; Paul Sax (@PaulSaxMD) <a href=\"https:\/\/twitter.com\/PaulSaxMD\/status\/947529865628090370?ref_src=twsrc%5Etfw\">December 31, 2017<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<ul>\n<li><strong>What&#8217;s the best way to explain to patients the difference between &#8220;TARGET NOT DETECTED&#8221; and &#8220;VIRAL RNA DETECTED BUT BELOW THE QUANTIFIABLE RANGE OF THE ASSAY&#8221;?<\/strong> There has to be a better way than using these words &#8212; especially since the clinical relevance is definitely below the quantifiable range of this clinician.<\/li>\n<li><strong>Does anyone really understand why ampicillin and ceftriaxone are synergistic against enterococci when given together? <\/strong>The standard explanation is a combination of <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC4492516\/\" target=\"_blank\" rel=\"noopener\">complete and partial inhibition of various penicillin binding proteins<\/a>.\u00a0Confess I still don&#8217;t quite get it, since the organism is intrinsically resistant to ceftriaxone, but maybe that&#8217;s just me.<\/li>\n<li><strong>What explains the media fascination with the giant rats that can diagnose TB?<\/strong>\u00a0Sure it&#8217;s interesting the first few times, but it seems we&#8217;re treated to a piece on these clever critters on a regular basis. <a href=\"https:\/\/www.google.com\/search?biw=1399&amp;bih=780&amp;ei=bgBJWsOzA4TNmwHZypUY&amp;q=rats+tuberculosis+Guardian&amp;oq=rats+tuberculosis+Guardian&amp;gs_l=psy-ab.3...180293.182249.0.182440.9.9.0.0.0.0.145.777.8j1.9.0....0...1.1.64.psy-ab..0.7.624...0j0i22i10i30k1j0i22i30k1j33i21k1j33i160k1.0.gBlO542gdnU\" target=\"_blank\" rel=\"noopener\"><em>The Guardian<\/em><\/a> is particularly impressed &#8212; &#8220;Slow news day? I know, let&#8217;s run another piece on the TB-sniffing rats.&#8221;<\/li>\n<li><strong>How long before we see a serious infection linked to <a href=\"https:\/\/www.nytimes.com\/2017\/12\/29\/dining\/raw-water-unfiltered.html\" target=\"_blank\" rel=\"noopener\">&#8220;raw&#8221; water<\/a>?<\/strong> As with the anti-vaccine movement, this pseudo-scientific effort to replace tap or standard bottled water with &#8220;off-the-grid&#8221; H2O includes a potent mix of homeopathy, paranoia, marketing, and charismatic zealots, with no political persuasion spared. Buyer beware!<\/li>\n<\/ul>\n<p>Since we finished with a bit of homeopathy, here are three enjoyable debunking pieces &#8212;\u00a0<a href=\"https:\/\/www.nytimes.com\/2018\/01\/05\/opinion\/doctors-naturopaths-health-science.html\" target=\"_blank\" rel=\"noopener\"><em>How to Counter the Circus of Pseudoscience<\/em><\/a> and\u00a0<em><a href=\"https:\/\/sciencebasedmedicine.org\/top-ten-signs-your-detox-may-be-a-scam\/\" target=\"_blank\" rel=\"noopener\">Top Ten Signs Your Detox May Be a Scam.<\/a>\u00a0<\/em>and (coinciding marvellously with the football playoffs), <a href=\"https:\/\/www.jacobinmag.com\/2018\/01\/tom-brady-health-care-diet-quackery\" target=\"_blank\" rel=\"noopener\"><em>Tom Brady is Trying to Kill You.<\/em><\/a><\/p>\n<p>Of course these pieces typically preach to the choir, but they sure are gratifying to read.<\/p>\n<p>And our fungal friend <em>Candida<\/em> makes a predictable appearance early in the second one!<\/p>\n<p><iframe loading=\"lazy\" title=\"Going Organic - Ultra Spiritual Life episode 37\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/WimA-FpWBoc?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Here are some &#8220;quick questions&#8221; with an ID theme for people to consider as we head into week 3 of 52 of this new year. Just think, by the end of next week, we&#8217;ll be nearly 6% done with the new year. How time flies! For the various items below, if people know the answers, [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,4,5,9],"tags":[1146],"class_list":["post-8574","post","type-post","status-publish","format-standard","hentry","category-health-care","category-hiv","category-infectious-diseases","category-policy","tag-just-wondering"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/blogs.nejm.org\/hiv-id-observations\/index.php\/wp-json\/wp\/v2\/posts\/8574","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.nejm.org\/hiv-id-observations\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.nejm.org\/hiv-id-observations\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.nejm.org\/hiv-id-observations\/index.php\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.nejm.org\/hiv-id-observations\/index.php\/wp-json\/wp\/v2\/comments?post=8574"}],"version-history":[{"count":0,"href":"https:\/\/blogs.nejm.org\/hiv-id-observations\/index.php\/wp-json\/wp\/v2\/posts\/8574\/revisions"}],"wp:attachment":[{"href":"https:\/\/blogs.nejm.org\/hiv-id-observations\/index.php\/wp-json\/wp\/v2\/media?parent=8574"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.nejm.org\/hiv-id-observations\/index.php\/wp-json\/wp\/v2\/categories?post=8574"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.nejm.org\/hiv-id-observations\/index.php\/wp-json\/wp\/v2\/tags?post=8574"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}