这个是最新官方说法。摘录如下: ( \+ k4 H: z3 C5 P+ T( Z3 P; l# B ^6 J7 ~7 e2 @4 e8 `
Not all children will get away with only one shot, however. The Public Health Agency's revised guidelines are as follows: ' ~: V4 Y5 { j2 o8 ^9 N # c8 f' S2 p- _) t- O2 A" v- Children between six months and under three years old should still receive two half-doses of adjuvanted H1N1 vaccine, at least 21 days apart. b' j! _# z0 Y* f7 r+ u, M% F* _ }
- 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. $ I3 C* B1 N* F8 h J/ ~& M2 R+ z/ { m
- 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 $ j2 v2 L; A% A, u* P' t# i" Ghttp://www.albertahealthservices.ca/901.asp#children" W0 Q* [% g' ^# f5 e' G: s5 R
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Will children need one or two vaccines? 2 ~ i6 D: J( P, B: h- X" ^( P. A4 t r' A
The Public Health Agency of Canada (Nov 12, 2009) recommends: 8 p) T2 [7 b* N/ n2 `" k- E3 a$ @/ ~$ 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.+ d0 g- ]7 M' n$ {$ [
* Healthy children with no chronic health problems aged three years to under 10 years should receive one half dose of the H1N1 adjuvanted vaccine. # S0 p! G- c) y1 |$ ]* E * 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 {# F! t2 g! L3 a/ ] * All children aged 10 years and older should receive one full dose adjuvanted vaccine.