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09 Apr 2018 description
report Government of Samoa

Outbreak Overview

The situational analysis of the dengue fever outbreak in Samoa as shown in the graph below portrays a continual decrease in the number of cases over the past 10 weeks. The cumulative total as of March 18th is 3,255 with a national attack rate of 16.6 per 1,000 population.

05 Mar 2018 description
report Government of Samoa

Outbreak Overview

The epi-curve of DENV-2 outbreak in Samoa shows a gradual decline in the number of cases per week. However, the numbers are still high with an accumulative total of 3,001 cases recorded from both clinical diagnosis and laboratory results. The national attack rate per 1,000 population is 15.3 with 1.5% of Samoa’s population affected.

13 Dec 2017 description
report Government of Samoa

Outbreak overview

Samoa has confirmed a Dengue fever serotype2 outbreak that was detected in the month of October 2017. A bunch of blood samples were confirmed at the ESR Lab in New Zealand. From what we have, a cumulative total of 1,522 clinical and confirmed cases with 339 hospital admissions were recorded as of December 3rd. There have been 4 dengue related deaths recorded.

31 May 2016 description
report Government of Samoa

Report Date: 16th May 2016

National Health Surveillance & International Health Regulation Division.

Outbreak Overview

ZIKA virus (ZIKV) has been reported in Samoa since 2015 by ILM Laboratory. Since then no further positive ZIKV tests were reported from there, including samples sent in 2016. Meanwhile, ESR Lab in NZ has confirmed ZIKV cases in Samoa from February 2016.

26 May 2016 description
report Government of Samoa

OUTBREAK OVERVIEW:

The DENV-3 outbreak in Samoa has shown continuing activity from 2015. Increasing activity was seen again from January 2016 with a fluctuating pattern but no steep increase as seen earlier, between June-August 2015.

So far the cumulative reported total is 1,188 cases with a national attack rate of 6.3 per 1,000 population.

04 Mar 2016 description
report Government of Samoa

Outbreak Description:

The DENV-3 outbreak in Samoa has shown a rise in numbers since epiweek 2, in January 2016 as seen in the DENV Epicurve.
The case definition for this outbreak is: an acute fever with any two of the following, a maculo-papular rash, joint or muscular pains, severe headaches, nausea and vomiting, pain behind the eyes, signs of bleeding and low white cell count. This takes into account the similar clinical picture for Dengue Like Illnesses (DLI) including other arbo-viral infections.

11 Feb 2016 description
report Government of Samoa

Currently:

  1. Laboratory results for 20 specimen sent for ZIKV screening at ILM Lab in Tahiti has arrived :
  • zero ZIKV detected

  • 7 out of 20 specimen are positive DENV cases.

Please note:

1. Case Definition for ZIKV from WHO/CDC which we will be using for surveillance purposes in Samoa:

Suspected case: Patient with rash or elevated body temperature (> 37.2 °C) with one or more of the following symptoms (not explained by other medical conditions):

11 Feb 2016 description
report Government of Samoa

Currently:

  • Clinicians are reporting clinical cases believed to be ZIKV infections.

  • There has been a rise in number of reported Dengue-Like Illnesses from January 2016.

  • Local Laboratory testing shows a yield of at least 32% of positive DENV cases by rapid SD Duo test.

  • We continue to await Laboratory results for 20 specimen sent for ZIKV screening at ILM Lab in Tahiti.

  • WHO DECLARATION Public Health Emergency of International Concern (PHEIC): Microcephaly/ZIKV.

09 Mar 2015 description
report Government of Samoa

Over 33 weeks, we have seen a total of 4,524 cases (as of 8 March 2015). Attack rate of 24.1 per 1,000.

2.4% of Samoa’s population have been infected (only those that present to the hospitals).

The case numbers have continued to decline over the past 2 months.

CONTROL MEASURES

  • Multi-media awareness programs e.g. television ads and targeted mass text messaging are continuing, with emphasis on source reduction

  • Community mobilization on source reduction also continues

02 Feb 2015 description
report Government of Samoa

Over 27 weeks, we have seen a total of 4,431 cases (as of 25th January 2015). Attack rate of 23.6 per 1,000.

2.4% of Samoa’s population have been infected (only those that present to the hospitals).

The case numbers continue to decline each week.

CONTROL MEASURES

  • Multi-media awareness programs e.g. television ads and targeted mass text messaging are continuing, with emphasis on source reduction

  • Community mobilization on source reduction also continues

14 Jan 2015 description
report Government of Samoa

In week 1 of 2015, period ending 4th January 2015, the Pacific Syndromic Surveillance flagged the following syndromes:

  • Acute Fever and Rash: French Polynesia

  • Diarrhoea: Tokelau and Samoa

  • Influenza-like illness: American Samoa and Palau

  • Prolonged Fever: French Polynesia and Tonga

14 Jan 2015 description
report Government of Samoa

Over 25 weeks, we have seen a total of 4,289 cases (as of 11th January 2015). Attack rate of 22.8 per 1,000.

2.3% of Samoa’s population have been infected (only those that present to the hospitals).

There has been a sustained decline in the number of cases over the past weeks.

CONTROL MEASURES

  • Multi - media awareness programs are continuing, with emphasis on source reduction

  • Targeted vector control is also continuing, with resistance surveys planned for 2015

12 Dec 2014 description
report Government of Samoa

Over 19 weeks, we have seen a total of 3,135 cases (Attack rate of 16.7 per 1,000). 1.7% of Samoa’s population have been infected (those that present to the hospitals). No reported deaths

CONTROL MEASURES

  • Multi-media awareness programs are continuing, with emphasis on source reduction

  • Multi-sectoral collaboration is continuing with the Ministry of Health calling on all sector partners to assist with source reduction

  • Targeted vector control is also continuing, with resistance surveys planned for 2015

19 Nov 2014 description
report Government of Samoa

Over 16 weeks, we have seen a total of 2,556 cases (Attack rate of 13.6 per 1,000)

Laboratory:

  • All specimen sent to ILM Tahiti over the past 2 months, have been negative for Zika virus, leptospirosis and dengue on PCR

  • We have now stopped sending specimen for testing to ILM Tahiti due to resources. (Please refer all laboratory queries to Manager TTM hospital)

CONTROL MEASURES

  • Awareness programs are continuing

  • Peri-focal spraying is continuing, to coincide with the Tuna omission conference.

02 Oct 2014 description
report Government of Samoa

Over 8 weeks, we have a cumulative total of 1,090 cases (Attack rate of 5.8 per 1,000)

Mass Gathering Surveillance for SIDs conference has ended on 15th September 2014.

Enhanced surveillance will continue.

24 Sep 2014 description
report Government of Samoa

Over 7 weeks, we have a cumulative total of 841 cases (Attack rate of 4.5 per 1,000)

Mass Gathering Surveillance, which started on the 26/8/14 for SIDS conference, will be completed on the 19/9/14.

24 Sep 2014 description
report Government of Samoa

Over 5 weeks, we have a cumulative total of 626 cases (Attack rate of 3.3 per 1,000)

Mass Gathering Surveillance started on the 26/8/14 for SIDS conference, with the assistance of SPC and is continuing for 2 more weeks.

Majority of the clinical cases are sent home (not admitted)

08 Sep 2014 description
report Government of Samoa

Over 4 weeks, we have a cumulative total of 433 cases (Attack rate of 2.3 per 1,000)

The case definition used is “acute fever and multiple joint pains” with or without a rash.

Mass gathering surveillance for SIDS conference spearheaded by SPC has started on 26/8/14

23 Aug 2014 description
report Government of Samoa

Over 3 weeks, we have a cumulative total of 308 cases (Attack rate of 1.6 per 1,000)

The case definition used is “acute fever and multiple joint pains” with or without a rash.