这个是最新官方说法。摘录如下: ; ]+ Q1 _' i/ ^3 I& U. x0 {5 p- R8 U g- u
Not all children will get away with only one shot, however. The Public Health Agency's revised guidelines are as follows: , `9 Y8 s5 J2 v) S6 u& _
8 [" k/ l' t; a8 i- Children between six months and under three years old should still receive two half-doses of adjuvanted H1N1 vaccine, at least 21 days apart. - a' G3 e8 [- C- a
1 t; B) {. U `* N# P- 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. + _+ `/ Q V; q! w) j" {5 m; _3 h# D0 ^: K* U8 j5 Y
- 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 ! K8 [1 v( ?+ O# b6 j http://www.albertahealthservices.ca/901.asp#children 3 H& s5 w8 O* [. M4 E/ B8 G ( @6 h( E0 [, | nWill children need one or two vaccines? a2 r5 _- d- R4 Y4 [, b8 ~- G4 M5 ^% s9 y8 A) V
The Public Health Agency of Canada (Nov 12, 2009) recommends:) s6 |$ w; H y, e8 ~/ r% a
+ L7 e# A6 B8 z/ D. b! V: A * 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. / G$ s5 E8 |. s+ p* O4 \% ~3 ^ y! Q- t * Healthy children with no chronic health problems aged three years to under 10 years should receive one half dose of the H1N1 adjuvanted vaccine. " U" d9 N6 U# Z * 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. " N2 \; ^$ O H * All children aged 10 years and older should receive one full dose adjuvanted vaccine.