这个是最新官方说法。摘录如下: 5 h+ k) h3 n6 e3 C3 w3 | ! ^. @. e/ t* e' N$ Z% W9 F& GNot all children will get away with only one shot, however. The Public Health Agency's revised guidelines are as follows: $ o. L1 ?9 Q2 U& C
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- Children between six months and under three years old should still receive two half-doses of adjuvanted H1N1 vaccine, at least 21 days apart. . P$ h: w' e' X% P2 F) T2 d8 M4 V. H2 P1 k, R W1 z
- 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. " M! |* L6 W3 i$ |! h5 J T( e
2 }9 t# n( s Y6 Y# C) [) k* m# s- 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.
* D3 i" L, ~+ i% x' l$ WWill children need one or two vaccines? 4 Z- T# Z0 b# f3 O* X/ g( m& N; w" q7 w6 y+ b- u6 `& g& W7 Q
The Public Health Agency of Canada (Nov 12, 2009) recommends:% g( @0 O) f' c
) O# z- t9 `8 D * 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$ n8 h2 Z$ e; M * 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 ]1 D' `3 _5 S8 y# N, f
* 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. % W) q: Z6 ?( R: a! n% r9 ~, a- R * All children aged 10 years and older should receive one full dose adjuvanted vaccine.