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    Infectious Disease Prevention Section
    Mail Code: 1927
    PO BOX 149347 - Austin, TX 78714-9347
    1100 West 49th Street, Suite G401
    Austin, TX 78714

    Phone: (512) 776-7676
    Fax: (512) 776-7616


Investigation Guidance

IDPS Home   Investigation Forms

The Emerging and Acute Infectious Disease Guidelines (EAIDG)

The purpose of this handbook is to provide a centralized resource for outbreak and reportable disease investigations to local and regional health departments in Texas. This handbook is intended as a tool to help local and regional public health staff with their surveillance activities and investigations. Our hope is that this handbook will continue to grow over the years and highlight some of the best investigation practices in the state. Information covers control measures, case definitions, case statuses, laboratory collection/shipping procedures and more. 

List of Individual Chapters: 

Acute Flaccid Myelitis (PDF, 442 KB)

Amebiasis (PDF, 412 KB)

Amebic Meningitis/Encephalitis (PDF, 510 KB)

Ascariasis (PDF, 322 KB)

Botulism (PDF, 515 KB)

Campylobacteriosis (PDF, 477 KB)

CRE (Carbapenem-resistant Enterobacteriaceae) (PDF, 340 KB)

CRS (Congenital Rubella Syndrome) (PDF, 350 KB)

Cryptosporidiosis (PDF, 444 KB)

Cyclosporiasis (PDF, 416 KB)

Diphtheria (PDF, 448 KB)

Ebola (PDF, 239 KB)

Fascioliasis (PDF, 387 KB)

GAS (Streptococcus pyogenes, Invasive) (PDF, 342 KB)

Gastroenteritis Outbreaks (PDF, 540 KB)

GBS (Group A Streptococcus agalactiae, Invasive) (PDF, 317 KB)

HAV (Hepatitis A virus) (PDF, 453 KB)

HBV (Hepatitis B virus, Acute and Perinatal) (PDF, 748 KB)

HCV (Hepatitis C virus) (PDF, 398 KB)

HEV (Hepatitis E virus) (PDF, 456 KB)

Haemophilus influenzae (PDF, 550 KB)

Hookworm (PDF, 366 KB)

Legionellosis (PDF, 1.1 MB)

Listeriosis (PDF, 472 KB)

MDR-A (Multidrug-resistant Acinetobacter) (PDF, 411 KB) 

Measles (PDF, 1.2 MB)

Meningococcal Infection, Invasive (PDF, 701 KB)

Mumps (PDF, 417 KB)

Norovirus Outbreaks (PDF, 447 KB)

Novel Coronavirus (PDF, 1.2 MB) For current  2019 novel coronavirus (2019-nCoV) guidance documents and information please see the DSHS Novel Coronavirus website:

Novel Flu (PDF, 760 KB)

Paragonimiasis (PDF, 410 KB)

Pediatric Flu Death (PDF, 613 KB)

Pertussis (PDF, 522 KB)

Polio (PDF, 380 KB)

Rubella (PDF, 415 KB)

Salmonellosis (PDF, 300 KB)

Shigellosis (PDF, 454 KB)

STEC (Shiga toxin-producing Escherichia coli) (PDF, 487 KB)

Streptococcus pneumoniae (PDF, 443 KB)

Tetanus (PDF, 290 KB)

Tick-borne Relapsing Fever (PDF, 145 KB)

Trichuriasis (PDF, 319 KB)

Typhoid Fever (PDF, 529 KB)

Varicella (PDF, 493 KB)

Vibrio Infections including Cholera (PDF, 535 KB)

Viral Hemorrhagic Fever (Non-Ebola) (PDF, 334 KB)

VISA/VRSA (Vancomycin Intermediate Staphylococcus aureus/Vancomycin Resistant Staphylococcus aureus) (PDF, 400 KB)

Yersiniosis (PDF, 443 KB)

Appendix A: Additional Flowcharts and Tables (PDF, 732 KB)

Appendix B: OOS Exposure Notifications (PDF, 460 KB)

Appendix C: Laboratory Resources (PDF, 976 KB)

Appendix D: Summary of Updates (PDF, 671 KB)

Appendix E: Additional Resources (PDF, 555 KB)

Last updated March 1, 2021