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Zika Virus

Zika Hotline

Daily Zika Virus Updates

Department of Health Daily Zika Update

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Click here to get the Daily Zika Virus Updates

Zika fever is a mild febrile illness caused by a mosquito-borne virus similar to those that cause dengue and West Nile virus infection. 

Zika virus has been linked to serious birth defects, including microcephaly, when contracted by expectant mothers during pregnancy. Microcephaly is a birth defect where a baby’s head is smaller than expected when compared to babies of the same sex and age. Babies with microcephaly often have smaller brains that might not have developed properly.

Zika virus has been identified in several countries in Central and South America, Mexico, and the Caribbean since 2015. Outbreaks have previously been reported in Africa, Southeast Asia, and the Pacific Islands. Local transmission has been reported in Puerto Rico and Florida. Cases of Zika fever have been reported in travelers returning to the United States.

Information on Limited Local Transmissions

Active transmission of Zika is occurring in a 1.5 square mile area on Miami Beach in Miami-Dade County within the boundaries of 8th and 28th streets. The Zika zones in the following areas have been lifted after 45 days with no evidence of active transmission and no additional people infected:

  • Wynwood (zone lifted Sept. 19, 2016)
  • North Miami Beach (zone lifted Nov. 22, 2016)
  • Little River (zone lifted Dec. 2, 2016)

The department advises residents and visitors to Miami-Dade County to remain vigilant about mosquito bite protection by draining all sources of standing water to keep mosquitoes from breeding and wearing bug repellent.

Florida’s small case cluster is not considered widespread transmission. If the department identifies additional areas of concern, the public and the media will be notified.


MIAMI BEACH
MIAMI BEACH Zoneclick image above to enlarge

Information on the department’s investigation and testing process is available here.

  • Travel-related Zika cases by county
  • Active Investigations
  • Transmission
  • Symptoms and Treatment
  • Guidance for Health Care Providers
  • Information for Travelers
  • Wynwood Timeline
  • South Miami Beach Timeline
  • North Miami Beach Timeline
  • Resources and References

County

Number of Cases (all travel related)

Alachua

10

Bay

4

Brevard

15

Broward

160

Charlotte

2

Citrus

2

Clay

6

Collier

22

Duval

10

Escambia

4

Flagler

2

Hernando

4

Highlands

1

Hillsborough

37

Indian River

1

Lake

4

Lee

13

Leon

2

Manatee

5

Marion

3

Martin

4

Miami-Dade

307

Monroe

9

Nassau

1

Okaloosa

4

Okeechobee

1

Orange

136

Osceola

34

Palm Beach

54

Pasco

9

Pinellas

20

Polk

29

Santa Rosa

1

Sarasota

5

Seminole

24

St. Johns

4

St. Lucie

11

Volusia

12

Total cases

972

*Note: This includes pregnant women and non-Florida residents who acquired Zika outside of Florida, but were diagnosed in Florida.


Data as of Dec. 07, 2016 – 3:14 p.m. ET

Information on Active Investigations

When a local case of Zika virus is confirmed through laboratory testing, the department conducts a thorough investigation around the case to determine if additional people are infected. The department interviews and tests close contacts and community members around the case. Knowing if additional people are infected helps the department determine if there is a zone where mosquitoes are transmitting the virus. Not every case results in a designation of active transmission in an area. In some instances, a case of Zika is an isolated incident with no additional people infected. For more information on the department’s testing and investigation process, click here

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Current Number of Active Investigations: 11

Miami-Dade County: 7 open investigations

Unknown: 4 open investigations.

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Current Number of Closed Investigations: 41

Miami-Dade County: 33 closed investigations

Palm Beach County: 6 closed investigation

Broward County: 1 closed investigation

Pinellas: 1 closed investigation 

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Sampling Activities For Active Investigations

Miami Beach in Miami-Dade County (Area of Active Transmission)

Total # of Samples Collected

Positive

Negative

Pending Results

1,067

75

992

0

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Miami-Dade Investigations Outside of Areas of Active Transmission – 6 Investigations

Total # of Samples Collected

Positive

Negative

Pending Results

48

2

46

0

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Wynwood Area in Miami-Dade County – Note: This investigation is closed, but the department is providing the sampling results below for reference.

Total # of Samples Collected

Positive

Negative

Pending Results

525

33

491

0


Little River in Miami-Dade County (Area of Active Transmission) Note: This investigation is closed, but the department is providing the sampling results below for reference.

Total # of Samples Collected

Positive

Negative

Pending Results

118

9

109

0


Data as of Dec. 07, 2016 – 3:14 p.m. ET

Zika fever is acquired through the bite of an infected mosquito, including the same mosquitoes that can transmit dengue and chikungunya. Perinatal and sexual transmission have also been reported.

CDC - Effective condom use to prevent sexual transmission

Only about 1 in 5 people infected with Zika virus are symptomatic. Zika fever is a mild illness. Severe disease requiring hospitalization is uncommon. Signs and symptoms of Zika fever may include: acute onset of low-grade fever, rash, joint pain, conjunctivitis (reddening of eye), body aches, headache, eye pain, and vomiting. Treatment is symptomatic since there is no specific treatment against the virus. Illness typically resolves within a week.

The Ministry of Health of Brazil has reported an increase in the numbers of newborns with microcephaly in areas experiencing Zika virus outbreaks. Further studies are being conducted to investigate this concern. There are many causes of microcephaly in babies, including genetic abnormalities, environmental factors, and some infections acquired during pregnancy.

Zika OBGYN Webinar - 10/27/2016

CHD Guidance on Testing Pregnant Women for Zika Virus Infection – 09/16/2016

Frequently Asked Questions About Zika Virus – 08/15/2016

Dear Prenatal and Obstetrical Health Care Provider – 08/05/2016

Dear Prenatal Providers – 07/22/2016

HMS Guidance for County Health Departments for Ordering Zika Testing for Pregnant Women – 08/15/2016

Laboratory Packaging and Shipping Guidance Document – Updated 08/05/2016

Zika Questionnaire for Providers – 08/04/2016

Updated Guidance for Zika Virus Testing - Pregnant Women Who Live or Work in the Area of Concern – 08/04/2016

CDC Zika Flyers

Think Zika / Spanish 

Enhanced Surveillance for ED Visits – Updated 02/08/2016

Information for Obstetricians – Updated 10/05/2016

Information for Clinicians – Updated 08/23/2016

Zika Testing FAQ – Updated 04/26/2016

Vector Control Fact Sheet for Vector Control Professionals

CDC MMWR - Interim Guidance for Preconception Counseling and Prevention of Sexual Transmission of Zika Virus for Persons with Possible Zika Virus Exposure

CDC MMWR-Travel Notice Revision – Updated 03/11/2016

CDC MMWR - Updated Guidance for Pregnant Women – Updated 07/25/2016

CDC MMWR - Suspected Female-to-Male Sexual Transmission of Zika Virus

CDC Updated Guidance for Prevention of Sexual Transmission of Zika Virus – Updated 07/25/2016

CDC - Updated Guidance for Health Care Providers Caring for Women of Reproductive Age with Possible Zika Virus Exposure

CDC - Laboratory guidance for handling and transporting Zika virus

CDC MMWR - Zika Virus Congenital Infections Hearing Loss Screening Recommendations, August 2016

CDC MMWR - Preventing Transmission in Labor and Delivery Settings

CDC MMWR - Guidelines for Pregnant Women

CDC MMWR - Small case series of pregnant women infected with Zika virus

CDC MMWR - Guidelines for the Evaluation and Testing of Infants

CDC MMWR -  Management of Infants with Possible Congenital Zika Virus Infection -  Updated 08/19/2016

CDC MMWR - Small case series of sexually transmitted Zika virus cases

CDC - Zika Health Advisory

COCA - Update on Interim Zika Virus Clinical Guidance and Recommendations

COCA - What Clinicians Need to Know

OSHA/NOSH - Interim Guidance for Protecting Workers from Occupational Exposure to Zika Virus / Spanish

Mosquito Bite Protection for Overseas Travelers / Spanish

Travelers to a tropical or sub-tropical area (Africa, Asia, Caribbean, Mexico, Central and South America), can protect themselves from Zika and other mosquito-borne diseases by following these prevention suggestions:

  • Use insect repellant with any of the following active ingredients
    • DEET (up to 30%)
    • Picaridin
    • Oil of lemon eucalyptus
    • Para-menthane diol
    • IR3535
    • Always follow product label instructions and make sure repellent is age-appropriate.
    • It is safe for pregnant or nursing women to use EPA-approved repellants if applied according to package label instructions.
    • Apply repellent on bare skin or clothing, not under clothing.
  • Cover skin with long-sleeved shirts and long pants
    • Apply a permethrin repellent directly to clothing or purchase pre-treated clothing. Follow the manufacturer’s directions and do not apply directly to the skin.
  •  Keep mosquitoes out of hotel rooms
    • Choose a hotel or lodging with air conditioning or screens on windows and doors.
    • Sleep under a mosquito bed net when outside or in a room that is not screened.

For more information on mosquito bite prevention visit: Mosquito-borne Prevention

To see a list of travel health notices issued by the Centers for Disease Control and Prevention please visit: http://wwwnc.cdc.gov/travel/notice

Wynwood Timeline

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South Miami Beach Timeline

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South Miami Beach Timeline

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*Note: This page contains materials in the Portable Document Format (PDF). The free Acrobat Reader may be required to view these files.