这个是最新官方说法。摘录如下: : X& S, p% J; O" e& l7 j( V8 Y K: r8 M, a
Not all children will get away with only one shot, however. The Public Health Agency's revised guidelines are as follows: . L8 K# q1 V' R8 @4 W$ k( Z' t1 z. {. X. E
- Children between six months and under three years old should still receive two half-doses of adjuvanted H1N1 vaccine, at least 21 days apart. ) Q+ v: F( O7 N% a. \ 3 ^! g+ q1 b- c, D& C, ]& g9 \3 I- 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. 4 N2 `1 ^0 P6 R- U3 `% _7 U# S# E2 e7 r* S' Q( J$ S* K
- 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 3 a1 s9 o* R+ {: b; ehttp://www.albertahealthservices.ca/901.asp#children. [6 w6 ^& `; e$ y) K- d* ~$ p/ Q
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Will children need one or two vaccines?* Q! p' Z8 l( w- e# |: E
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The Public Health Agency of Canada (Nov 12, 2009) recommends:, Z: U6 ?* l% `% Q& h6 @
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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. & O5 e; Z* w. z. ] * Healthy children with no chronic health problems aged three years to under 10 years should receive one half dose of the H1N1 adjuvanted vaccine.0 ~: e8 a- W1 d
* 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.1 s5 U2 K" L* ~+ K. w5 Z: Z
* All children aged 10 years and older should receive one full dose adjuvanted vaccine.