Quarterly Surveillance Report - Minnesota Dept. of Health

Quarterly Surveillance Report
July 1, 2017 – September 30, 2017

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

Updated 11/2017

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

16

(37)

46

(46)

Ramsey County

11

(26)

20

(20)

Other Metropolitan Counties*

6

(14)

10

(10)

Olmsted County

3

(7)

6

(6)

Other Counties

7

(16)

19

(19)

Total

43

(100)

101

(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

(2)

3

(3)

Black

21

(49)

55

(54)

Hispanic/Latino

6

(14)

9

(9)

Asian

14

(33)

31

(31)

Hawaiian/Other Pacific Islander

0

(0)

 0

(0)

American Indian

1

(2)

3

(3)

Multi-Racial

 0

(0)

 0

( 0)

Total

43

(100)

101

(100)

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

 

This Quarter

This Year to Date

Age

Number

(%)

Number

(%)

<5 years

 5

(12)

7

(7)

5-14 years

 2

(5)

5

(5)

15-24 years

 7

(16)

13

(13)

25-44 years

10

(23)

27

(27)

45-64 years

 7

(16)

26

(26)

>65 years

12

(28)

23

(23)

Total

43

(100)

101

(100)

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

 

This Quarter (N=43)

This Year to Date (N=101)

Risk Category

Number

(%)

Number

(%)

Non-U.S.-born

35

(81)

86

(85)

Substance abuse+

4

(9)

6

(6)

Homeless

2

(5)

3

(3)

HIV-infected

2

(5)

6

(6)

Other Medical Condition**

13

(30)

32

(32)

Inmate

 1

(2)

 1

(1)

Nursing Home Resident

1

(2)

2

(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=34)*

This Year to Date (N=83)*

Resistance Pattern

Number

(%)

Number

(%)

Any drug resistance**

9

(26)

23

(28)

Any INH resistance+

9

(26)

17

(20)

MDR-TB#

4

(12)

8

(10)

*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

24

(56)

55

(54)

Extrapulmonary

9

(21)

31

(31)

Both*

10

(23)

15

(15)

Total

43

(100)

101

(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

29

(67)

77

(76)

TB Contact Investigation

11

(26)

 14

(14)

Refugee Health Exam (Domestic)

0

(0)

1

(1)

Follow-up to Pre-Immigration Exam*

 0

(0)

0

(0)

Other**

3

(7)

9

(9)

Total

43

(100)

101

(100)

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

Updated Wednesday, November 29, 2017 at 12:32PM