这个是最新官方说法。摘录如下: ! _' B9 A! x/ L M ' g& j1 d# r9 s. C7 k2 hNot all children will get away with only one shot, however. The Public Health Agency's revised guidelines are as follows: 7 p; m- i0 K3 X V- l/ ^0 z/ |4 H/ m' R
- Children between six months and under three years old should still receive two half-doses of adjuvanted H1N1 vaccine, at least 21 days apart. 9 q/ `) U {. a- V1 p' a6 j6 F; \9 q) h# U8 l, \$ ~) G
- 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. * B" }: |4 Z- J/ M0 n
0 ], t1 s$ q5 [) M/ d
- 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 2 h# n* K( U8 y6 d http://www.albertahealthservices.ca/901.asp#children + n' N9 h: J, A6 R" @# U* g+ T; ^# [4 |! T/ F3 h
Will children need one or two vaccines? , D+ N% S2 m+ W& ?+ D9 R 7 y2 h l: N3 p5 K9 DThe Public Health Agency of Canada (Nov 12, 2009) recommends:# ?- B$ G& C4 y' x8 w
: K- r9 R: y. ]$ {6 E. w% v) j
* 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. 8 k6 n7 \8 z B6 I$ @+ A' [ * Healthy children with no chronic health problems aged three years to under 10 years should receive one half dose of the H1N1 adjuvanted vaccine. * B8 l7 y; T7 v* 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. ' n1 u! ~$ u3 {. Y0 C+ R) ` * All children aged 10 years and older should receive one full dose adjuvanted vaccine.