Weekly Disease Report

This page is a weekly report of reportable diseases in Hamilton County, TN. If you have any questions, please call our Epidemiology Department at (423) 209-8190.

A "reportable" disease is one that is required to be reported to the Health Department. Generally, these are diseases that are infectious from person-to-person or from some agent in the environment to people (for example, mosquitoes or ticks). Tracking these diseases provides an early warning system for the population as a whole. An "outbreak" is a cluster of cases of a disease. Monitoring "reportable" diseases allows us to determine when an "outbreak" is occurring.

Influenza (the flu) is not a reportable disease, however, each flu season (October to May) we track flu-like symptoms that are reported to us by local healthcare providers. These reports are on a voluntary basis but give us some idea of the severity of a flu season in our local area. These numbers will not appear on this report, but rather, will appear on a separate influenza report. For more information on influenza and the importance of getting the flu vaccine, visit our Influenza page.

These abbreviations apply to the table below:
MMWR = Morbidity and Mortality Weekly Report
WK = Week (calendar week number begin January 1)
YTD = Year-to-Date
- % change = means fewer than this time last year

Reportable Diseases

Hamilton County Selected Reportable Diseases, Year-to-Date (MMWR 19), Reporting Period: 12/31/17 - 5/12/18 Hamilton County 2017 YTD* Hamilton County 2018 YTD* Percent Change State of TN 2018 YTD*
Botulism, infant 0 0 0% 0
Campylobacteriosis 6 8 33% 229
Chikungunya Virus 0 0 0% 0
Chlamydia 694 747 8% 12,992
Cryptosporidiosis 1 1 0% 68
Dengue Fever 0 0 0% 0
Ehrlichiosis/Anaplasmosis 0 0 0% 1
Enterobacteriaciae, Carbapenem-resistant (CRE) 0 6 0% 226
Gonorrhea 275 355 29% 4583
Group A Streptococcus, invasive 11 8 -27% 162
Group B Streptococcus, invasive 16 7 -56% 204
Haemophilus influenzae, invasive 2 1 -50% 61
Hansen disease (Leprosy) 0 0 0% 1
Hemolytic uremic syndrome 0 1 Undefined 3
Hepatitis A, acute 0 0 0% 12
Hepatitis B, acute 2 1 -50% 117
Hepatitis C Virus Infection, chronic, or resolved 350 354 1% 7526
Hepatitis C, acute 1 0 -100% 56
HIV 17 12 -29% 221
Latent Tuberculosis Infection 26 19 -27% 358
Legionellosis 4 2 -50% 26
Listeriosis 0 1 Undefined 5
Lyme disease 0 0 0% 6
Malaria 0 0 0% 1
Mumps 0 0 0% 8
Neisseria meningitidis, invasive 0 0 0% 2
Pertussis 0 2 Undefined 43
Salmonellosis 10 7 -30% 192
STEC (Shiga toxin-producing Escherichia coli) 0 3 Undefined 79
Shigellosis 1 1 0% 57
Spotted Fever Rickettsiosis 0 1 Undefined 43
Syphilis 43 27 -37% 454
Streptococcus pneumoniae, invasive disease (IPD) 17 13 -24% 435
Tuberculosis 1 2 100% 64
VRE (Vancomycin-Resistant Enterococcus), invasive 5 4 -20% 63
Vibriosis 0 0 0% 6
West Nile Virus, neuroinvasive disease 0 0 0% 0
West Nile Virus, non-neuroinvasive disease 0 0 0% 0
Yersiniosis 0 0 0% 11
Zika 0 0 0% 0
*Preliminary data subject to change - source: TN Dept of Health
https://www.tn.gov/health/ceds-weeklyreports/cedep-reports.html
https://www.tn.gov/health/ceds-weeklyreports/preliminary-data-for-sexually-transmitted-diseases.html