Zika Confirmed Connecticut Cases Increase To 23

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Surveillance for Zika virus has been ongoing in Connecticut since February 15, 2016. No locally acquired cases have been reported. The following annual statistics are preliminary and are current as of the date shown.

 

http://www.ct.gov/dph/cwp/view.asp?a=3136&pm=1&Q=580282

 

Zika Virus Testing, Cumulative Results 

 

Current as of June 14, 2016

 

382	Number of Patients with Final Results
315	Number of Pregnant Patients with Final Results
18	Number of Patients with Positive Results for Zika Virus
3	Number of Pregnant Patients with Positive Results for Zika Virus
8	Number of Patients with Positive Results for Flavivirus*
5	Number of Pregnant Patients with Positive Results for Flavivirus*

 

 

Table: Travel History of Patients with Positive Test Results by

Zika Affected Country or Territory Visited - Connecticut, February 15 - June 14, 2016
 

Countries/Territories Visited	Zika Positive	Flavivirus Positive*	Total
Aruba		1	1
Brazil		1	1
Colombia	1	1	2
Dominican Republic	11		11
El Salvador		1	1
Guatemala		1	1
Haiti	1	2	3
Honduras	2		2
Mexico		1	1
Puerto Rico	3		3
Total	18	8	26

 

 

*Test results unable to distinguish between Zika virus, a single-stranded RNA virus in the genusFlavivirus, and others that are closely related including dengue, West Nile, Japanese encephalitis, and yellow fever viruses¹. A positive test may mean infection with any of these viruses.

1. CDC. Interim Guidance for Interpretation of Zika Virus Antibody Test Results. MMWR. May 31, 3016. Accessed June 1, 2016.

 

 

 

Figure: Number of Patients with Positive Zika Virus Test Result by
Test Type and Month of Specimen Collection - Connecticut, February 15 - June 14, 2016

 

 

 

 

 

 

 

Tests Performed for Diagnosis of Zika Virus Infection

Available at the DPH Public Health Laboratory

IgM antibodies - The best time to test is 2-12 weeks after exposure. May be positive for asymptomatic or symptomatic patients.

 

RT-PCR - Test for viral genetic material. The test is best performed on serum within the first week of symptom onset or on urine within the first 2 weeks of symptom onset.

 

 

Specimens Sent to the Centers for Disease Control and Prevention

 

PRNT - A more specific antibody test that is performed on IgM positive specimens. The gold standard method to detect the presence of anti-Zika antibodies and rule out cross reactivity due to other flaviviruses such as dengue.

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Map Update

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