这个是最新官方说法。摘录如下: 5 T9 q9 x1 b0 K1 z$ T ( |6 b) _1 Z/ B8 vNot all children will get away with only one shot, however. The Public Health Agency's revised guidelines are as follows: * o3 `# Z C) u* h5 H+ s [! l+ l0 U Z5 h/ b% Y
- Children between six months and under three years old should still receive two half-doses of adjuvanted H1N1 vaccine, at least 21 days apart. * [3 j( ]1 [6 Z- ^% u7 l9 J1 B; {! r) ~" |- S, t( O
- 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. $ j; \9 E. M, l
6 l6 ]" J5 [4 O R; |8 T- 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.
1 @' k9 p# T( AWill children need one or two vaccines? 7 R% ^$ R7 c% s6 r1 {% L; z2 t# g! n+ X8 M+ W. G$ x6 } u
The Public Health Agency of Canada (Nov 12, 2009) recommends: 0 \/ c; j# r2 X c. ^- \ |/ }% ~) W" m, Y U+ o( f
* 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.( Q- O* j* M2 c' ^( D
* Healthy children with no chronic health problems aged three years to under 10 years should receive one half dose of the H1N1 adjuvanted vaccine. 1 K; U. X3 |/ u# l* {1 K5 j* n * 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. ( G6 P- S3 }7 b4 ?7 r/ M' J * All children aged 10 years and older should receive one full dose adjuvanted vaccine.