这个是最新官方说法。摘录如下:2 g% K) _3 c8 Q! K
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Not all children will get away with only one shot, however. The Public Health Agency's revised guidelines are as follows: 3 V, @8 G5 x4 r/ Y& i
& t* F4 V% ^& F Q5 N& }- Children between six months and under three years old should still receive two half-doses of adjuvanted H1N1 vaccine, at least 21 days apart. 8 _7 t( j8 d- D7 [
5 ` I$ U# s$ d- P" v9 z8 F5 u- Children between three years and nine years old with chronic health conditions should get their first half-dose as quickly as possible. They should get a second half-dose at least 21 days later. ' C0 f: r+ a6 Y" I
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- Healthy kids between three years and nine years old should only receive a half-dose of H1N1 vaccine. They don't need to come back for a second shot.
alberta health 的说法 . P* I# B* }( c: v: ?http://www.albertahealthservices.ca/901.asp#children# `& F6 i- v+ o
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Will children need one or two vaccines?/ V: E$ Y$ i6 y. o& q
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The Public Health Agency of Canada (Nov 12, 2009) recommends:' K: }$ V+ {' I, I) \- x9 b
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* Children from six months up to and less than three years old receive two half-doses of the H1N1 adjuvanted vaccine. There should be a minimum of 21 days between the two half doses. 2 d( T0 k3 b) V. S" c5 F * Healthy children with no chronic health problems aged three years to under 10 years should receive one half dose of the H1N1 adjuvanted vaccine." N9 A( f7 b& z/ q8 Y
* Children aged three to under 10 years with chronic medical conditions should receive two half doses of adjuvanted H1N1 vaccine. There should be a minimum of 21 days between the two half doses. 4 G) |" D# m+ d * All children aged 10 years and older should receive one full dose adjuvanted vaccine.