Con­spir­acy the­o­rist

Bangkok Post - - OPINION -

Eric Bahrt may be fac­tu­ally cor­rect in both his re­cent let­ters con­cern­ing the po­lio vac­cine. How­ever, he has missed at least one im­por­tant point. As I un­der­stand it, the vac­cine de­liv­ered orally con­tains an at­ten­u­ated virus, which stim­u­lates an im­mune re­sponse with­out giv­ing you po­lio. This at­ten­u­ated virus may be passed from one per­son to an­other. Thus, al­though not ev­ery­one re­ceives the vac­cine, they may still ben­e­fit from the vac­ci­na­tion pro­gramme by “catch­ing” the at­ten­u­ated virus strain. This would ex­plain why herd im­mu­nity may be achieved with­out nec­es­sar­ily vac­ci­nat­ing ev­ery­one.

Per­haps more im­por­tantly, Mr Bahrt seemed to be im­ply­ing in his first let­ter that vac­ci­na­tion is some kind of weird con­spir­acy, though I may have mis­un­der­stood him. It is not en­tirely clear pre­cisely what he be­lieves. Per­haps he might care to state his views ex­plic­itly.


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