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. 2020 Apr 3;69(13):387–388. doi: 10.15585/mmwr.mm6913a4

FIGURE.

The figure is a histogram, an epidemiological curve indicating the number of confirmed and suspected cases of dengue fever in Guam (N = 242), by date of symptom onset and source of infection, during September 3–November 16, 2019.

Number of confirmed*,† and suspected§ cases of dengue fever, by date of symptom onset and source of infection (N = 242**) — Guam, September 3–November 16, 2019

* Confirmed cases that had symptom onset dates of September 18, September 27, and October 10, 2019, had positive results by immunoglobulin M (IgM) testing; all other confirmed cases had positive results by reverse transcription–polymerase chain reaction (RT-PCR).

† Two confirmed cases had both positive RT-PCR and IgM results.

§ All suspected cases had negative results by RT-PCR or IgM testing

Some illness onset dates have been estimated from date of specimen collection or date of laboratory results.

** One travel-associated case was identified during the surveillance period by IgM testing but had symptom onset before the surveillance period began; six suspected cases had not completed RT-PCR or IgM testing during the period and are not included.