这个是最新官方说法。摘录如下: 0 g' s+ n; T' E+ V/ b5 [+ m% c6 Y) o' ]% O
Not all children will get away with only one shot, however. The Public Health Agency's revised guidelines are as follows: ( B6 F. Q; u M, v( J% b0 J6 ?7 _( L/ f( G8 [1 |. [6 A
- Children between six months and under three years old should still receive two half-doses of adjuvanted H1N1 vaccine, at least 21 days apart. 5 ~* R N. T5 _ # n1 l2 |$ @ C- 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. : F+ T, X7 }$ l0 u( z# Q
( o" C5 t- s% K$ `0 i) h6 K" C- 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.
+ M& R1 D4 p4 y! z7 m9 t" W+ KWill children need one or two vaccines?; ~3 g9 f2 U& Z8 ^/ n. b8 }
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The Public Health Agency of Canada (Nov 12, 2009) recommends:5 l' [1 v; z: L- m/ J8 v
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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. _) c. B9 Z0 P# o: S! T- a. u3 w
* Healthy children with no chronic health problems aged three years to under 10 years should receive one half dose of the H1N1 adjuvanted vaccine. m( y2 n9 N! s' ~' F- i * 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. 9 T% Q0 u1 [" x7 ~5 X; L5 D * All children aged 10 years and older should receive one full dose adjuvanted vaccine.