WHO vaccine-preventable diseases: monitoring system. 2017 global summary

Last updated 15-July-2017 (data as of 11-July-2017)
Next overall update Fall-2017
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Development status: Least developed GNI / capita (US$): 3'9301 Infant (under 12 months) mortality rate: 152
GDP / capita (US$): 5'9231 Child (under 5 years) mortality rate: 182

Population data in thousands3

  2016  2015  2014  2013  2012  2000  1990  1980 
Total population 195  194  192  191  189  175  163  156 
Births
Surviving infants
Pop. less than 5 years 23  24  25  25  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  43  39  38  34 

Number of reported cases

(Click for retrospective incidence data for Samoa)
Diphtheria
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Japanese encephalitis
 
Measles
ChartChart ChartChart
  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
 
* Polio refers to all polio cases (indigenous or imported), including polio cases caused by vaccine derived polio viruses (VDPV). For disaggregated 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  82  89  95  95  96  97  97  72 
DTP1 2012  88     67  99*  99*  99  99*  99  94 
DTP3 2012  64     67  90  94  91  95  92  99*  90  29 
DTP4         
IPV1          94 
HepB_BD          85  82  91  96  99 
HepB3 2012  64     67  90  94  91  95  99  96 
Hib3 2012  64     67  90  94  91  95  99 
JapEnc         
MCV1          77  78  91  99  85  93  89 
MCV2          59  63  78  87  67 
MenA         
PCV1         
PCV2         
PCV3         
Pol3 2012  62     67  90  94  91  95  95  99*  88  29 
Rota1         
RotaC         
RCV1          77  78  91  99  85 
TT2plus 2012  24     67  99*  70 
PAB         
VAD1         
YFV         
* indicates the country reported above 100% coverage.

  Next update: Mid-July 2018

WHO-UNICEF estimates6

  (Click for full retrospective WHO-UNICEF coverage estimates data for Samoa)
BCG
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  76  83  89  89  90  97  97  72 
DTP1
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  95  89  88  89  88  97  96  54 
DTP3
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  62  66  63  67  64  95  90  29 
HepB3
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  55  59  56  60  64  89 
HepB_BD
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  72  72  69  78  83  86 
Hib3
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  55  59  56  60  64 
IPV1
  94 
MCV1
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  68  69  82  90  76  93  89 
MCV2
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  44  48  63  72  52 
PCV3
 
Pol3
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  57  61  58  62  62  94  88  29 
RCV1
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  68  69  82  90  76 
RotaC
 

Click for WHO-UNICEF coverage estimates data for PAB time series.

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% 40
From 80 to 89% 30
From 50 to 79% 30
Less than 50% 0
Proportion of districts
not reporting DTP3 coverage
0
DTP3 reported coverageDTP3 reported coverage

Immunization Schedule (2016 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_Pediatric birth; Yes
IPV 14 weeks; Yes
MMR 12, 15 months; Yes
OPV 6, 10, 14 weeks; Yes
Td 1st contact pregnancy;+2, +3 months; +1, +1 year; Yes

Immunizaton indicators

Indicator Expected answer 2016  2015  2014  2013  2012  2011  2010 

Planning and management

Has the country a Multi-Year Plan (MYP) for immunization? Yes/No/NR Yes  Yes  Yes  Yes  No  No  No 
What years does the MYP cover? number 2'018  2015-2016  2014-2016  2013-2015       
Nº of districts with microplans that include activities to raise immunization coverage number   10  10       

System performance

Total Nº districts in country number 10  10  10 
Nº districts with DTP3 coverage >=80% number  
% of districts with DTP3 coverage >=80% From 0 to 100% 70  70  80  100      56 
Nº districts with measles (MCV1) coverage >=95% number  
% of districts with MCV1 coverage >=95% From 0 to 100% 10  20  40  56      22 

Safety

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

Finance

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

National Immunization Advisory Mechanism

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

Sources

 1  "The 2017 World Bank Development Indicators Online", GDP per capita is PPP adjusted.
 2  World Health Statistics 2016, data for 2015
 3  "United Nations, Population Division. The World Population Prospects - the 2017 revision". New York, 2017.
 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.