Quarterly Surveillance Report - Minnesota Dept. of Health

Quarterly Surveillance Report
April 1, 2017 – June 30, 2017

Quarterly summary of the epidemiology of the confirmed cases of TB disease reported to the Minnesota Department of Health from April 1, 2017– June 30, 2017, and cumulatively to date in 2017. This report is updated in February, April, July and October each year.

Updated 08/2017

NOTE: Percentages may not total 100% due to rounding.

On this page:
Table 1. Number of Cases of Tuberculosis by Location of Residence, Minnesota
Table 2. Number of Cases of Tuberculosis by Race/Ethnicity, Minnesota
Table 3. Number of Cases of Tuberculosis by Age, Minnesota
Table 4. Number of Cases of Tuberculosis by Risk Category, Minnesota
Table 5. Number of Cases of Drug-Resistant Tuberculosis, Minnesota

Table 6. Number of Cases of Tuberculosis by Site of Disease, Minnesota
Table 7. Number of Cases of Tuberculosis by Method of Case Identification, Minnesota

Table 1. Number of Cases of Tuberculosis by Location of Residence, Minnesota

 

This Quarter

This Year to Date

Location of Residence

Number

(%)

Number

(%)

Hennepin County

21

(54)

30

(52)

Ramsey County

7

(18)

9

(16)

Other Metropolitan Counties*

 2

(5)

4

(7)

Olmsted County

3

(8)

3

(5)

Other Counties

 6

(15)

12

(21)

Total

39

(100)

58

(100)

*Anoka, Carver, Dakota, Scott, and Washington counties

Table 2. Number of Cases of Tuberculosis by Race/Ethnicity, Minnesota

 

This Quarter

This Year to Date

Race/Ethnicity

Number

(%)

Number

(%)

White

1

(3)

2

(3)

Black

23

(59)

34

(59)

Hispanic/Latino

1

(3)

3

(5)

Asian

12

(31)

17

(29)

Hawaiian/Other Pacific Islander

0

(0)

 0

(0)

American Indian

2

(5)

2

(3)

Multi-Racial

 0

(0)

 0

( 0)

Total

39

(100)

58

(100)

Table 3. Number of Cases of Tuberculosis by Age, Minnesota

 

This Quarter

This Year to Date

Age

Number

(%)

Number

(%)

<5 years

 1

(3)

2

(3)

5-14 years

 1

(3)

3

(5)

15-24 years

 4

(10)

6

(10)

25-44 years

11

(28)

17

(29)

45-64 years

 13

(33)

19

(33)

>65 years

9

(23)

11

(19)

Total

39

(100)

58

(100)

Table 4. Number of Cases of Tuberculosis by Risk Category, Minnesota*

 

This Quarter (N=39)

This Year to Date (N=58)

Risk Category

Number

(%)

Number

(%)

Non-U.S.-born

34

(87)

51

(88)

Substance abuse+

2

(5)

2

(3)

Homeless

1

(3)

1

(2)

HIV-infected

3

(8)

4

(7)

Other Medical Condition**

13

(33)

19

(33)

Inmate

 0

( 0)

 0

(0)

Nursing Home Resident

1

(3)

1

(2)

*Risk categories are not mutually exclusive.
+Alcohol abuse and/or illicit drug use
**Silicosis, diabetes, prolonged corticosteroid therapy or other immunosuppressive therapy, hematologic/reticuloendothelial disease, end stage renal disease, substantial weight loss (not TB-related) or undernutrition

Table 5. Number of Cases of Drug-Resistant Tuberculosis, Minnesota

 

This Quarter (N=30)*

This Year to Date (N=49)*

Resistance Pattern

Number

(%)

Number

(%)

Any drug resistance**

9

(30)

14

(29)

Any INH resistance+

6

(20)

8

(16)

MDR-TB#

3

(10)

4

(8)

*Culture-confirmed cases with drug susceptibility results available
**Resistant to at least one first-line anti-TB drug [i.e., isoniazid (INH), rifampin, pyrazinamide (PZA), or ethambutol]
+May also have resistance to other drugs
#Multi-drug resistant TB (i.e., resistant to at least INH and rifampin)

Table 6. Number of Cases Tuberculosis by Site of Disease, Minnesota

 

This Quarter

This Year to Date

Site of Disease

Number

(%)

Number

(%)

Pulmonary

18

(46)

31

(53)

Extrapulmonary

17

(44)

22

(38)

Both*

4

(10)

5

(9)

Total

39

(100)

58

(100)

*TB cases with both pulmonary and extrapulmonary sites of disease, including miliary TB

Table 7. Number of Cases of Tuberculosis by Method of Case Identification, Minnesota

 

This Quarter

This Year to Date

How Identified

Number

(%)

Number

(%)

Presented with Symptoms

32

(82)

48

(83)

TB Contact Investigation

 2

(5)

 3

(5)

Refugee Health Exam (Domestic)

1

(3)

1

(2)

Follow-up to Pre-Immigration Exam*

 0

(0)

0

(0)

Other**

4

(10)

6

(10)

Total

39

(100)

58

(100)

*Infectious, active TB disease ruled out overseas
**e.g., occupational screening, other targeted TB testing, etc.

Updated Friday, August 25, 2017 at 11:40AM