Prevention

The best way to protect against PD is through vaccination. Vaccines are generally safe and effective. Two types of vaccines currently available are- a pneumococcal polysaccharide vaccine (PPSV) used for adults and a pneumococcal conjugate vaccine (PCV) used for infants and children under 2 years of age and children under 5 years who have a weakened immune system.

你可以征询医生意见，看你儿子要打PPSV还是PCV。

Pneumococcal vaccines. (Minimum age: 6 weeks for pneumococcal conjugate
vaccine [PCV]; 2 years for pneumococcal polysaccharide vaccine [PPSV])

Administer 1 dose of PCV to all healthy children aged 24 through 59 months who are
not completely vaccinated for their age.

For children who have received an age-appropriate series of 7-valent PCV (PCV7), a
single supplemental dose of 13-valent PCV (PCV13) is recommended for:
——All children aged 14 through 59 months
——Children aged 60 through 71 months with underlying medical conditions.

Administer PPSV at least 8 weeks after last dose of PCV to children aged 2 years or
older with certain underlying medical conditions, including a cochlear implant. See
MMWR 2010:59(No. RR-11), available at http://www.cdc.gov/mmwr/pdf/rr/rr5911.pdf.

http://en.wikipedia.org/wiki/Pneumococcal_conjugate_vaccine

Synflorix is produced by GlaxoSmithKline. It is a decavalent vaccine, meaning that it contains ten serotypes of pneumococcus (1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F, and 23F) which are conjugated to a carrier protein. Synflorix received a positive opinion from the European Medicines Agency for use in the European Union in January 2009 [3] and GSK received European Commission authorization to market Synflorix in March 2009.[4]

Prevnar 13 is produced by Pfizer. It is a triskaivalent vaccine, meaning that it contains thirteen serotypes of pneumococcus (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, 23F) which are conjugated to a carrier protein. Prevnar 13 was approved by the U.S. Food and Drug Administration for immediate release to the public on February 24, 2010. It is to be given on the same schedule as was Prevnar.[5]

有些医生说如果家里没有上幼儿园的孩子，不常接触别的孩子，可以等到1岁以后。风险要家长自己拿捏。

http://mycpf.cpf.gov.sg/CPF/my-cpf/have-child/HC2.htm#vaccination


其余强制打的疫苗在polyclinic是好像是免费的，在外面打一般5in1或6in1就要用现金或婴儿花红了。