WHO vaccine-preventable diseases: monitoring system. 2016 global summary

Last updated 15-July-2016 (15-July-2016)
Next overall update Fall 2016
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Development status: Least developed GNI / capita (US$): 4'0501 Infant (under 12 months) mortality rate: 152
GDP / capita (US$): 5'7911 Child (under 5 years) mortality rate: 182

Population data in thousands3

  2015  2014  2013  2012  2011  2000  1990  1980 
Total population 193  192  190  189  187  175  163  156 
Births
Surviving infants
Pop. less than 5 years 24  25  25  26  26  26  23  24 
Pop. less than 15 years 72  72  72  72  72  71  66  72 
Female 15-49 years 43  43  43  43  42  39  38  34 

Number of reported cases

(Click for retrospective incidence data for Samoa)
Diphtheria
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Japanese encephalitis
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Measles
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  376 
Mumps
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Pertussis
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  113 
Polio*
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Rubella
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Rubella (CRS)
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Tetanus (neonatal)
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Tetanus (total)**
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Yellow fever
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* Polio refers to all polio cases (indigenous or imported), including polio cases caused by vaccine derived polio viruses (VDPV). For desagregated data please click on this hyperlink: https://extranet.who.int/polis/public/CaseCount.aspx
it does not include cases of vaccine-associated paralytic polio (VAPP) and cases of non polio acute flaccid paralysis [AFP]).
** Neonatal Tetanus and Total Tetanus cases equality may be the result from a lack of non-Neonatal Tetanus surveillance system.

Percentage target population vaccinated by antigen

Hovering over an antigen reveals its fuller definition
  Most recent coverage survey4  

Official country estimates5

  (Click for retrospective coverage estimates data for Samoa)
Vaccine year result method % card seen                                                
BCG 2012  90     67  89  95  95  96  99*  97  97  72 
DTP1 2012  88     67  99*  99  99*  99  99*  94 
DTP3 2012  64     67  94  91  95  92  91  99*  90  29 
DTP4         
IPV1         
HepB_BD          85  82  91  96  99*  99 
HepB3 2012  64     67  94  91  95  99  91  96 
Hib3 2012  64     67  94  91  95  99  91 
JapEnc         
MCV1          78  91  99  85  67  93  89 
MCV2          63  78  87  67  65 
PCV1         
PCV3         
Pol3 2012  62     67  94  91  95  95  91  99*  88  29 
Rota1         
RotaC         
Rubella1          78  91  99  85  67 
TT2plus 2012  24     67  22  99*  70 
PAB         
VAD1         
YFV         
° indicates that more than 1 survey occurred that year.  * indicates the country reported above 100% coverage.

  Next update: Mid July 2017

WHO-UNICEF estimates6

  (Click for full retrospective WHO-UNICEF coverage estimates data for Samoa)
BCG
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  83  89  89  90  95  97  97  72 
DTP1
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  89  88  89  88  91  97  96  54 
DTP3
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  66  63  67  64  65  95  90  29 
HepB3
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  59  56  60  64  58  89 
HepB_BD
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  72  69  78  83  87  86 
Hib3
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  59  56  60  64  56 
IPV1
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MCV1
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  69  82  90  76  59  93  89 
MCV2
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  48  63  72  52  50 
PCV3
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Pol3
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  61  58  62  62  60  94  88  29 
RCV1
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  69  82  90  76  59 
RotaC
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Number of districts in the country 10  Proportion of
districts reporting
DTP3 coverage:
% of coverage reports received at national
level vs number of reports expected
 
   
/
|
|
\
Greater or equal to 90% 50
From 80 to 89% 20
From 50 to 79% 30
Less than 50% 0
Proportion of districts
not reporting DTP3 coverage
0
DTP3 reported coverageDTP3 reported coverage

Immunization Schedule (2015 or latest available)

Hovering over an antigen reveals its fuller definition
Vaccine Schedule Entire country Comment
BCG birth; Yes
DTwP 5 years; Yes
DTwPHibHepB 6, 10, 14 weeks; Yes
HepB birth; Yes
IPV 14 weeks; Yes
MMR 12, 15 months; Yes
OPV 6, 10, 14 weeks; Yes
Td 1st contact pregnancy;+1, +8 months; +1, +1 year; Yes

Immunizaton indicators

Indicator Expected answer 2015  2014  2013  2012  2011  2010  2009 

Planning and management

Has the country a Multi-Year Plan (MYP) for immunization? Yes/No/NR Yes  Yes  No  No  No  No  Yes 
What years does the MYP cover? number 2014-2016  2013-2015          2008-2010 
Nº of districts with microplans that include activities to raise immunization coverage number 10        10 

System performance

Total Nº districts in country number 10  43 
Nº districts with DTP3 coverage >=80% number  
% of districts with DTP3 coverage >=80% From 0 to 100% 80  100      56  67 
Nº districts with measles (MCV1) coverage >=95% number  
% of districts with MCV1 coverage >=95% From 0 to 100% 40  56      22 

Safety

Has the country a vaccine adverse events review committee? Yes/No/NR/ND     No  No  No     
Is there a national system to monitor adverse events following immunization (AEFI)? Yes/No/NR     Yes  Yes  No  No  Yes 

Finance

Immunization expenditure financed, using Government funds? From 0 to 100%     100  100    100  100 

National Immunization Advisory Mechanism

Has the country a standing technical advisory group on immunization (NITAG)? Yes/No/NR No  Yes  Yes  Yes  Yes     

Sources

 1  "The 2013 World Bank Development Indicators Online", GDP per capita is PPP adjusted.
 2  World Health Statistics 2013, data for 2012
 3  "United Nations, Population Division. The World Population Prospects - the 2015 revision". New York, 2016.
 4  UNICEF/WHO survey database
 5  If no official estimate is available, the administrative coverage is reported. '*' indicates coverage over 99.5%.
 6  WHO-UNICEF estimates.