Investigations and Cases

The Immunization Division monitors the incidence and prevalence of vaccine-preventable diseases (VPDs). This table summarizes investigations and cases reported over the last 12 months, and CDC recommended tests and specimens. Underlined diseases link to the Council of State and Territorial Epidemiologists (CSTE) case definitions to determine case classification (i.e., confirmed, probable, suspect, or not a case).

To submit a VPD specimen a Requisition Form For BCL Laboratory Testing must be completed, and you may need to complete the Wisconsin State Laboratory of Hygiene Lab Form or CDC Specimen Submission Form (2 MB).

VPD Notifiable Diseases

ADPH Investigations

ADPH Cases

CDC Recommended Test Methods*

CDC Recommended Specimen Type*

Diphtheria

0

0

Culture and identification1

Throat or nasopharynx swab or cutaneous lesion

Haemophilus influenzae

100

87

Culture and identification1

Blood, CSF, or from any sterile site listed below

Meningococcal Disease

17

1

Culture2

Blood, CSF, or from any sterile site listed below

Measles (Rubeola)

143

1

Culture, Serology1, or PCR

Blood or serum

Mumps

83

56

Culture, Serology1, or PCR

Blood, Buccal Swab, Nasopharyngeal, or Throat Swab

Pertussis (Whooping Cough)

361

238

Culture1, or PCR1

Nasopharyngeal aspirate or wash, or throat swab

Polio (Poliomyelitis, paralytic & Poliovirus Infection, non-paralytic)

0

0

Clinical diagnosis (Poliomyelitis), Culture (Poliovirus infection)

Stool, CSF, or oropharyngeal secretions

Rubella (German Measles, Three-Day Measles)

10

2

Culture, Serology1, or PCR

Blood or serum

Smallpox

0

0

CDC Only

Vesicular or pustular fluid

Streptococcus pneumoniae

559

434

Culture2

Blood, CSF,or from any sterile site listed below

Tetanus

1

1

Clinical diagnosis

N/A

Hepatitis A, Acute

133

17

Serology1

Blood

Hepatitis B, Acute

90

69

Serology1

Blood

Hepatitis B, Perinatal 

*Inconclusive

*Inconclusive

Serology1

Blood

Varicella (Chickenpox)

690

100

Culture, DFA, Serology, or PCR1

Lesion

Total 09/01/2016 - 09/01/2017

2187

1006

 

Key 

* To confirm cases based on CDC case definitions

1 Test offered by Bureau of Clinical Laboratories (BCL)

2 Pure culture confirmation only by BCL

3 Normally sterile body site (e.g., Blood, Bone, CSF, internal body site (specimen obtained from surgery or aspirate from one of the following: lymph node, brain, heart, liver, spleen, vitreous fluid, kidney, pancreas, ovary, or, vascular tissue), pericardial fluid, peritoneal fluid, synovial/joint fluid.)

Culture - Isolation

CSF - Cerebrospinal fluid

DFA - Direct florescence assay

PCR - Polymerase chain reaction 

 

Outbreak Totals

- 11 outbreaks have been reported in 2017.
·  1 outbreak is still under investigation (pertussis)
·  2 reported from day camp (pertussis)
·  1 reported from a hospital (pertussis)
·  1 reported from a community (pertussis)
·  1 reported from a nursing home (pertussis)
·  5 reported from schools and colleges/universities (mumps and pertussis)

Pertussis Testing Video: Collecting a Nasopharyngeal Swab Clinical Specimen

Pertussis Testing Video: Collecting a Nasopharyngeal Aspirate Clinical Specimen


Page last updated: October 13, 2017