Legionellosis (Legionnaires’ Disease) Data
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Legionellosis Incidence Rate Map, Texas County by Year (jpg image)
| Legionellosis Cases and Incidence Rates for Texas, 2011-2020 | ||
| Year | Case Count | Incidence Rate |
| 2020 | 316 | 1.1 |
| 2019 | 421 | 1.4 |
| 2018 | 415 | 1.4 |
| 2017 | 327 | 1.1 |
| 2016 | 270 | 1.0 |
| 2015 | 292 | 1.1 |
| 2014 | 256 | 0.9 |
| 2013 | 168 | 0.6 |
| 2012 | 158 | 0.6 |
| 2011 | 111 | 0.4 |
| 2010 | 136 | 0.5 |
| aIncidence rates (IR) are calculated per 100,000 population. Population data are projected population from Texas Demographic Center’s Texas Populations Projections Program; 2020 and 2019 population projections were updated March 2022, and 2018 & earlier population projections were from the prior version. Data Source: Texas NEDSS Finalized Data File, 2011-2020, Texas Notifiable Conditions. | ||
| Legionellosis Cases and Incidence Ratesa by Age Group, 2016-2020 | ||||||||||
| 2016 | 2017 | 2018 | 2019 | 2020 | ||||||
| Age Group | Count | IR | Count | IR | Count | IR | Count | IR | Count | IR |
| <1 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | - | - | 0 | 0.0 |
| 01-04 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 |
| 05-09 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 |
| 10-14 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | - | - | 0 | 0.0 |
| 15-19 | 1 | 0.0 | 0 | 0.0 | 0 | 0.0 | - | - | 0 | 0.0 |
| 20-29 | 5 | 0.1 | 9 | 0.2 | 16 | 0.4 | 12 | - | 5 | 0.1 |
| 30-39 | 20 | 0.5 | 15 | 0.4 | 31 | 0.8 | 30 | 0.7 | 21 | 0.5 |
| 40-49 | 27 | 0.7 | 53 | 1.5 | 43 | 1.1 | 38 | 1.0 | 46 | 1.2 |
| 50-59 | 67 | 1.9 | 63 | 1.8 | 96 | 2.7 | 98 | 2.8 | 65 | 1.9 |
| 60+ | 150 | 3.1 | 187 | 3.7 | 229 | 4.4 | 238 | 4.5 | 180 | 3.3 |
| Total | 270 | 1.0 | 327 | 1.1 | 415 | 1.4 | 421 | 1.4 | 317 | 1.1 |
| aIR=age group-specific incidence rate per 100,000. | ||||||||||
| Note: Per Emerging and Acute Infectious Disease Unit Data Suppression policy, beginning with data published after September 2021, subgroup case counts of 1-4 are not provided (-). Rates are not provided (-) when the Relative Standard Error exceeds 25% (n <16). Population data are projected population from Texas Demographic Center’s Texas Populations Projections Program; 2019 population projections were updated July 18, 2019, and 2018 & earlier population projections were from the prior version. | ||||||||||
|
Legionellosis Cases and Incidence Ratesa for the Most Populous Texas Counties, 2019-2020 |
||||
|
County |
2019 |
2020 |
||
|
Cases |
IR |
Cases |
IR |
|
|
BEXAR |
41 |
2.0 |
25 |
1.2 |
|
BRAZORIA |
- |
- |
0 |
0.0 |
|
CAMERON |
- |
- |
- |
- |
|
COLLIN |
14 |
- |
15 |
1.4 |
|
DALLAS |
58 |
2.2 |
49 |
1.8 |
|
DENTON |
16 |
1.8 |
18 |
2.0 |
|
EL PASO |
13 |
- |
- |
- |
|
FORT BEND |
- |
- |
- |
- |
|
HARRIS |
50 |
1.0 |
38 |
0.8 |
|
HIDALGO |
14 |
- |
8 |
0.9 |
|
MONTGOMERY |
12 |
- |
7 |
1.1 |
|
NUECES |
- |
- |
- |
- |
|
TARRANT |
38 |
1.8 |
30 |
1.4 |
|
TRAVIS |
19 |
1.5 |
25 |
1.9 |
|
WILLIAMSON |
10 |
- |
5 |
0.8 |
|
STATEWIDE TOTALS |
421 |
1.4 |
317 |
1.1 |
|
aIncidence rates (IR) are calculated per 100,000 population. Population data are projected population from Texas Demographic Center’s Texas Populations Projections Program, updated July 18, 2019. |
||||
|
Note: Per Emerging and Acute Infectious Disease Unit Data Suppression policy, beginning with data published after September 2021, rates are not provided (-) when the Relative Standard Error exceeds 25% (n<16). Data Source: Texas NEDSS Finalized Data File, 2019, Texas Notifiable Conditions. |
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For more data regarding this condition, please see our Infectious Disease Annual Reports or submit a Data Request.