Human Cases 2010 through 2019
DISCLOSURE: All Zoonosis webpages are under construction temporarily until all content issues are corrected.
Zoonotic Diseases*
Zoonoses are diseases transmissible from animals to humans. Although there are over 150 recognized zoonoses, those of significance to Texas include:
- Human Cases of Reportable Zoonotic Diseases in Texas 2020-2029 page
- Human Cases of Reportable Zoonotic Diseases in Texas 2000-2009 page
- 2000-2019 Human Cases of Reportable Zoonotic Diseases in Texas (Excel table)
Disease | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 |
Anaplasmosis | 3 | 2 | 1 | 0 | 3 | 3 | 1 | 2 | 4 | 4 |
Anthrax | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
Babesiosis | NR | NR | NR | 1 | 1 | 1 | 1 | 0 | 2 | 2 |
Brucellosis | 21 | 11 | 18 | 11 | 15 | 23 | 43 | 26 | 18 | 44 |
California Encephalitis1 | 1 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
Chagas Disease | NR | NR | NR | 19 | 20 | 25 | 27 | 33 | 32 | 28 |
Chikungunya | NR | NR | NR | NR | 114 | 55 | 20 | 15 | 7 | 19 |
Cysticercosis | 6 | 9 | 10 | 7 | 16 | 14 | 16 | 10 | 12 | 14 |
Dengue | 19 | 7 | 16 | 95 | 34 | 32 | 45 | 43 | 20 | 74 |
Eastern Equine Encephalitis | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Echinococcosis | NR | NR | NR | NR | NR | NR | 2 | 0 | 2 | 1 |
Ehrlichiosis | 3 | 4 | 4 | 8 | 12 | 8 | 15 | 17 | 9 | 9 |
Ehrlichiosis/Anaplasmosis2 | NR | NR | NR | NR | NR | NR | 1 | 0 | 0 | 0 |
Hantavirus Infection | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
Hantavirus Pulmonary Syndrome | 1 | 0 | 0 | 1 | 5 | 2 | 0 | 2 | 0 | 0 |
Japanese Encephalitis | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Leishmaniasis | 0 | 4 | 6 | 11 | 12 | 6 | 13 | 8 | 15 | 10 |
Lyme Disease | 142 | 74 | 75 | 82 | 40 | 54 | 71 | 66 | 47 | 42 |
Malaria | 98 | 102 | 102 | 89 | 106 | 99 | 159 | 158 | 144 | 159 |
Plague | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Q-Fever | 12 | 19 | 12 | 20 | 12 | 13 | 19 | 20 | 22 | 19 |
Rabies in Humans | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
Rickettsiosis, unspecified3 | NR | NR | NR | NR | NR | 4 | 13 | 9 | 12 | 19 |
Spotted Fever Rickettsiosis4 | 34 | 52 | 77 | 83 | 94 | 61 | 87 | 106 | 76 | 23 |
St Louis Encephalitis | 3 | 0 | 3 | 1 | 4 | 0 | 0 | 0 | 0 | 0 |
Taenia infection | 1 | 1 | 1 | 0 | 1 | 6 | 2 | 1 | 1 | 3 |
Tick-borne Relapsing Fever5 | 0 | 0 | 0 | 0 | 0 | 1 | NR | 7 | 2 | 1 |
Trichinosis | 0 | 2 | 1 | 0 | 2 | 4 | 4 | 0 | 0 | 0 |
Tularemia | 1 | 0 | 0 | 1 | 0 | 1 | 3 | 1 | 0 | 0 |
Typhus | 135 | 286 | 263 | 222 | 308 | 324 | 364 | 519 | 738 | 591 |
West Nile Disease | 89 | 27 | 1868 | 183 | 379 | 275 | 370 | 135 | 146 | 32 |
West Nile Encephalitis | 77 | 20 | 844 | 113 | 253 | 196 | 252 | 87 | 108 | 24 |
West Nile Fever | 12 | 7 | 1024 | 70 | 126 | 79 | 118 | 48 | 38 | 8 |
Yellow Fever | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Zika Virus Disease | NR | NR | NR | NR | NR | 8 | 315 | 55 | 4 | 2 |
NOTE: These data reflect only those cases reported to the Department of State Health Services. The actual incidence of these diseases in the state may be higher. |
Zoonotic Diseases*
More information about zoonotic diseases in Texas can be found in the alphabetized list below.
- Case Definitions for Reportable Diseases
- Cat Scratch Disease (Cat Scratch Fever)
- Chagas Disease
- Chronic Wasting Disease
- Cysticercosis (PDF)
*The purpose of surveillance is to try to detect where disease organisms, such as bacteria and viruses, occur in Texas. Rabies surveillance for example is basically an observation or watch for the virus that causes rabies. When an animal is exhibiting the signs of rabies, the brain may be submitted to an approved laboratory for testing. Animals that have bitten or otherwise may have exposed a person or a domestic animal to the virus should also be tested. If an animal is positive, it means that the virus was found during testing. If an animal is negative, it means that the virus was not found during testing. Similar surveillance is conducted on samples from animals for a variety of diseases. The amount of testing in the surveillance process will vary for different counties statewide. If a report indicates that an area does not have any positive test results for a particular disease, it does not necessarily mean that the disease organisms are not in that area. It just reflects the fact that either there were no samples submitted from that area or that submitted samples were negative.