Case Counts

The Infectious Diseases & Outbreaks Division monitors the incidence and prevalence of communicable, zoonotic, and environmentally-related human diseases. This table summarizes cases reported over the last five years, as well as the cases reported year-to-date this year and last year. 

 

Cases Reported Year-to-Date*

Totals by Year Reported

Condition

2021

2020

% Change

2020

2019

2018

2017

2016

Acute Flaccid Myelitis

0

0^

--

0^

0^

--

--

--

Anthrax

0

0

--

0

0

0^

0

0

Arboviral Diseases (excludes Chikungunya virus, Dengue, and Zika virus)

9

6

50.0%

10

6

28

62

18^

Babesiosis

0

1

-100.0%

1

0

0

1

0

Botulism

0

0

--

1

1

0

0

1

Brucellosis

0

0

--

1

4

1

0

0

Campylobacteriosis

498

459

8.5%

663

754

783

790

692

Chikungunya virus

0

0

--

0

0

0

1

1^

Cholera

0

0

--

0

0

0

0

0

Coccidioidomycosis

9

3

200.0%

5

9

--

--

--

Cryptosporidiosis

67

93

-28.0%

137

225

152

189

334

Cyclosporiasis

6

7

-14.3%

9

4

--

--

--

Dengue

1

0

--

0

3

2

0

5

E. coli, shiga toxin-producing (includes O157: H7)

90

71

26.8%

100

138

129^

31

39

Ehrlichiosis/Anaplasmosis

19

11

72.7%

12

39

24

17

21

Giardiasis

98

78

25.6%

130

164

217

191

234

Hansen's Disease (Leprosy)

0

1

-100.0%

1

1

0

1

1

Hantavirus Pulmonary Syndrome

0

0

--

0

0

--

--

--

Hemolytic uremic syndrome (HUS)

1

3

-66.7%

3

6

3

0

6

Hepatitis E, acute

0

0

--

0

0

0

0

0

Influenza-associated non-pediatric mortality

24

18

33.3%

19

93

257

--

--

Influenza-associated pediatric mortality

0

1

-100.0%

1

2

2

1

0

Legionellosis

65

38

71.1%

61

72

76

66

63

Leptospirosis

0

0

--

0

0

1

0

0

Listeriosis

9

11

-18.2%

14

7^

11

5

8

Lyme disease

36

9

300.0%

15

66

36

39^

38

Malaria

5

2

150.0%

2

9

9

8

10

Novel Influenza A virus infection

0

0

--

0

0

0

0

0

Paratyphoid Fever

0

1

-100.0%

2

0^

6^

3

9

Plague

0

0^

--

0^

0

0

0

0

Psittacosis

0

0

--

0

0

0

0

0

Q fever

2

0

--

0

2

2

0

1

Rabies, animal

33

44

-25.0%

50

50

55

51

77

Rabies, human

0

0

--

0

0

0

0

0

Salmonellosis

545

543

0.4%

881

1001

1198^

1129^

1276

Severe Acute Respiratory Syndrome-associated Coronavirus (SARS-CoV)

0

0

--

0

0

0

0

0

Shigellosis

55

321

-82.9%

342

431

320

247^

239

Smallpox

0

0

--

0

0

0

0

0

Spotted Fever Rickettsiosis

90

73

23.3%

90

476^

673

671

453

Toxic Shock Syndrome (non-streptococcal)

0

0

--

0

0

--

--

--

Trichinellosis (Trichinosis)

1

0

--

0

0

0

0

0

Tularemia

0

0

--

1

4

0

1^

1

Typhoid fever

1

0

--

1

0^

1

1

0

Vibriosis (non-Cholera)

20

18

11.1%

26

41

38

26^

31

Viral hemorrhagic fever

0

0

--

0

0

0

0

0

VISA (Staphylococcus aureus, vancomycin-intermediate)

1

0

--

0

1

1

4

3

VRSA (Staphylococcus aureus, vancomycin-resistant)

0

1

-100.0%

1

2

0

0

0

Yellow Fever

0

0

--

0

0^

0

0

0

Zika virus

0

0

--

0

0

3

4

41^

Other Investigations

1

0

--

0

3

0

0

0

Total

1686

1813

-7.0%

2579

3614

4028

3539

3602

NOTE: Counts include finalized investigations among Alabama residents as of September 22, 2021. The Other investigations category includes a variety of conditions or events that have been investigated, but are not reportable in Alabama or do not fall into any other category (e.g., Histoplasmosis, Streptococcal toxic-shock syndrome, Yersiniosis, etc.). To see case counts for conditions investigated by other divisions, please see the following websites: Tuberculosis, Immunizations, Sexually Transmitted Diseases, and HIV/AIDS.

*Through MMWR Week 37 (week ending September 18, 2021), as compared to the same time period in the previous calendar year.

^The case definition was updated this year for this condition.

 





Page last updated: September 22, 2021