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	<id>https://idwiki.org/index.php?action=history&amp;feed=atom&amp;title=Specific_antibody_deficiency</id>
	<title>Specific antibody deficiency - Revision history</title>
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	<updated>2026-05-13T00:57:03Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://idwiki.org/index.php?title=Specific_antibody_deficiency&amp;diff=6767&amp;oldid=prev</id>
		<title>Aidan: Created page with &quot;* Failure to respond to an unconjugated polysaccharide vaccine despite otherwise normal immune evaluation * Characterized by recurrent community-acquired pneumonia * Investiga...&quot;</title>
		<link rel="alternate" type="text/html" href="https://idwiki.org/index.php?title=Specific_antibody_deficiency&amp;diff=6767&amp;oldid=prev"/>
		<updated>2020-09-14T00:46:36Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;* Failure to respond to an unconjugated polysaccharide vaccine despite otherwise normal immune evaluation * Characterized by recurrent community-acquired pneumonia * Investiga...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;* Failure to respond to an unconjugated polysaccharide vaccine despite otherwise normal immune evaluation&lt;br /&gt;
* Characterized by recurrent community-acquired pneumonia&lt;br /&gt;
* Investigated by giving pneumococcal 23-valent polysaccharide vaccine and measuring titres 4 to 6 weeks later&lt;br /&gt;
** Serotype specific titres should be ≥1.3 μg/mL or 2-fold increase; if not, it suggests specific antibody deficiency&lt;br /&gt;
* Management is immunization with the conjugated 13-valent pneumococcal vaccine&lt;br /&gt;
&lt;br /&gt;
[[Category:Primary immunodeficiencies]]&lt;/div&gt;</summary>
		<author><name>Aidan</name></author>
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