Dengue fever alert reactivated for Asia and the Pacific Islands — Vax Before Travel

(Vax before the trip)

The US CDC recently confirmed that dengue virus has become a health problem in Asia and the Pacific Islands. To alert international travelers, the CDC has reissued a Level 1 advisory, Watch – Level 1, Practice Usual Precautions.

On September 6, 2022, the CDC stated, “Several (12) countries in the Western Pacific Ocean region are reporting an increase in the number of dengue fever cases.”

Dengue is a disease caused by a virus transmitted by mosquito bites. The disease can take up to two weeks to develop, with the disease usually lasting less than a week.

However, dengue can get worse within hours.

Severe dengue fever is a medical emergency, usually requiring hospitalization.

In severe cases, health effects can include bleeding, shock, organ failure, and death.

Since mosquito bites spread dengue fever, all travelers to risk areas should avoid mosquito bites.

Another prevention option is vaccination.

There are now two dengue vaccines licensed worldwide as of September 8, 2022.

The US FDA cleared the Dengvaxia vaccine for limited use in May 2019. Laboratory confirmation of previous dengue virus infection is required prior to vaccination against Dengvaxia

And on August 22, 2022, Takeda’s QDENGA® vaccine was approved in Indonesia.

More news on the dengue outbreak is posted at

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