这个是最新官方说法。摘录如下:2 w# u! b- r- S, y* b9 q9 w' o
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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: - G: d9 y" M" u
& u4 q# m0 j! {- Children between six months and under three years old should still receive two half-doses of adjuvanted H1N1 vaccine, at least 21 days apart. ! o; w0 ~- @4 R# q0 h2 E: Q* ~0 H4 `* p" ~& e
- 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. ! c& G: B% d$ d8 p5 c* I' `4 J
( _( j, q- B9 [5 I- 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 * K* f" M3 d- L1 E- K3 r http://www.albertahealthservices.ca/901.asp#children 7 i- H. f; @ A3 y4 k' I# h9 R+ A ) N0 P; ^2 U* e: P# F) iWill children need one or two vaccines?) ]# R0 k, E; b+ j+ S( u; A
) I2 k+ v9 e7 ^) T7 KThe Public Health Agency of Canada (Nov 12, 2009) recommends: % J8 f7 y3 \. E; h5 w+ U ) z+ r9 a5 n, x * 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.- d3 R* D. W- N8 u8 k
* Healthy children with no chronic health problems aged three years to under 10 years should receive one half dose of the H1N1 adjuvanted vaccine.$ x2 ]7 C: b! n+ j
* 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.0 h; |$ A3 E% Q" {) h
* All children aged 10 years and older should receive one full dose adjuvanted vaccine.