这个是最新官方说法。摘录如下: 2 F3 C! r2 Y7 G% C/ C3 C . @& |9 ^! S" G5 g7 }* E5 `Not all children will get away with only one shot, however. The Public Health Agency's revised guidelines are as follows: ) {+ s$ a. `# N; [2 ]1 o+ s - n) e$ L9 Z8 @- Children between six months and under three years old should still receive two half-doses of adjuvanted H1N1 vaccine, at least 21 days apart. 1 Y- l3 T4 d4 x$ |9 F3 w 2 G, m& k% L4 W7 l8 ]2 t- 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. - ^4 b: d% e T" z* F: m * @2 r* \- y2 h; @7 V1 ^4 l* B' n8 o' w- 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 - }# G, M3 @# @- u- z6 F0 o http://www.albertahealthservices.ca/901.asp#children& z/ L3 X% S7 ]# D& S
% J0 w& Q* y) a( S& @1 d8 x" M
Will children need one or two vaccines?2 S2 C" \$ f, ?" F9 n- e
% h) M0 b9 e. z1 ~
The Public Health Agency of Canada (Nov 12, 2009) recommends:. R1 g+ ]: j3 m) t' L0 x; w
, ~ h% E# G* n. l+ l2 z
* 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. 0 R5 e$ T! ?; @$ u$ l * Healthy children with no chronic health problems aged three years to under 10 years should receive one half dose of the H1N1 adjuvanted vaccine.3 X1 `8 u5 _1 |, }7 Y0 `- k
* 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. & c/ D7 S) \% p4 ^ M$ | * All children aged 10 years and older should receive one full dose adjuvanted vaccine.