Government of the Federated States of Micronesia

Zika outbreak: Update No. 4

YAP (Yap Department of Health Services): August 6, 2007 - The Yap State Department of Health Services reports that cases of Zika have significantly slowed on Yap Proper. The most recent suspected case presented on July 17th at Yap Memorial Hospital. The total cases that presented to health care are now 99 confirmed cases (by PCR and IgM analysis) and 54 probable cases.

Probable cases have been identified in the neighboring islands Ulithi, Fais, Earpik, Woleai and Ifalik. A travel advisory and the distribution of WHO donated mosquito repellent to the neighboring islands is ongoing. Serum collection on the affected communities has been coordinated for the next field trip.

To Review:

The community survey of Yap Proper has been completed and data is now being analyzed. It involved an environmental survey, entomologic collection, and serosurvey. The success of the survey owes much to the Wa'ab Community Health Center (WCHC). The WCHC utilizes health workers from each area of Yap Proper. They provide outreach into their own communities and were essential in getting the survey teams into the villages. The survey also had vital technical support from the CDC, FSM National Government, WHO and Institute Pasteur. The data is currently undergoing analysis.

A travel advisory for all in-bound and out-bound passengers to Yap remains in effect. It asks that individuals visiting Yap avoid mosquito bites. If a visitor to Yap falls ill while in Yap or after returning home, they are requested to report to a health professional. In order to reduce the risk of infecting other islands or other countries, individuals are strongly advised not to travel if they are feeling ill.

Health professionals who suspect Zika in a patient (especially with recent travel to Yap) are asked to immediately inform their local health department and the FSM Department of Health at (691) 320-2619 or the Yap Epinet Team at To reduce the risk of establishing local transmission, patients should be instructed to avoid mosquito exposure during their acute illness.

There have been no updates to the Zika brochure. Interested clinicians and health professionals can contact the Yap State EpiNet Team for a PDF version of the flier that summarizes some of the preliminary clinical characteristics of the outbreak at We plan to periodically update this brochure as additional information becomes available.

Please contact Dr. Martin Bel at if you have further questions.

For further information on this release, please contact:

FSM Office of the President
Public Information: Press, Radio, Video
P.O Box 34
Palikir Station, Pohnpei, FM 96941
Tel.: (691) 320-2548/2092
Fax.: (691) 320-4356