Is this indicating the vax is <b>not</b> working or am I reading it wrong <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/confused.gif" style="border:0px solid;" title="Confused">:<br><br><div style="margin:20px;margin-top:5px;">
<div class="smallfont" style="margin-bottom:2px;">Quote:</div>
<table border="0" cellpadding="6" cellspacing="0" width="99%"><tr><td class="alt2" style="border:1px inset;">The pertussis antigen declines so rapidly after vaccination that, with single-serum</td>
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<div class="smallfont" style="margin-bottom:2px;">Quote:</div>
<table border="0" cellpadding="6" cellspacing="0" width="99%"><tr><td class="alt2" style="border:1px inset;">The epidemiology of reported pertussis disease is very different from that of B. pertussis<br>
infection. In the prevaccine era, pertussis was universally present, with recognized cyclic peaks<br>
every 2-5 years. That remains true now, at about every 3 years, even with dramatically reduced<br>
prevalence. Unlike measles, which is now controlled in both disease and organism circulation,<br>
pertussis still cycles, indicating that the organism, while controlled, still circulates just as it did in<br>
the prevaccine era.</td>
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