CDC Contact Information for Healthcare Professionals

Purpose

Publication name: CDC Yellow Book: Health Information for International Travel
Edition: 2026
Top takeaway: Healthcare professionals can contact CDC for inquiries, services, CDC Drug Service, diagnostic testing, and clinical management.
Healthcare professional looking at phone and computer.

CDC contact information

Inquiries and services

CDC contact information

General health information

CDC-INFO National Contact Center

Hours: Monday–Friday, 8:00 a.m. to 8:00 p.m. Eastern

Phone: 800-CDC-INFO (800-232-4632)

Website: CDC-INFO

Emergency or urgent patient care assistance

CDC Emergency Operations Center

Hours: Available every day at all hours Phone: 770-488-7100

CDC drug service

Inquiries and services

CDC contact information

Special biologic agents and drugs

Hours: Monday–Friday, 8:00 a.m. to 4:30 p.m. Eastern

Phone: 404-639-6370

After hours/weekend/holidays phone: 770-488-7100

Email: drugservice@cdc.gov

Website: Formulary

Product

Indication

Anthrax vaccine adsorbed

Anthrax immunization

Botulism Antitoxin Heptavalent (Equine), Types A–G

Botulism treatment

Diethylcarbamazine (DEC)

Lymphatic filariasis, tropical pulmonary eosinophilia, loiasis treatment

Diphtheria antitoxin (Equine)

Diphtheria treatment

Eflornithine

2nd stage African trypanosomiasis treatment (T. brucei gambiense)

JYNNEOS

Smallpox and mpox immunization

Melarsoprol

2nd stage African trypanosomiasis treatment

Suramin

1st stage African trypanosomiasis treatment (T. brucei rhodesiense)

Vaccinia vaccine

Smallpox immunization

Diagnostic and clinical assistance

Travel-associated infections and diseases

CDC contact information

Chikungunya

Japanese encephalitis

Tick-borne encephalitis

Yellow fever

Zika

CDC’s Division of Vector-Borne Diseases, Arboviral Diseases Branch

Hours: Monday–Friday, 8:00 a.m. to 4:30 p.m. Mountain

Phone: 970-221-6400

After hours/weekend/holidays phone: 770-488-7100

Email: dvbid@cdc.gov

Dengue

CDC’s Division of Vector-Borne Diseases, Dengue Branch

Hours: Monday–Friday, 8:00 a.m. to 5:00 p.m. Atlantic

Phone: 787-706-2399

After hours/weekend/holidays phone: 770-488-7100

Email: dengue@cdc.gov

Website: Dengue

Malaria

CDC’s Division of Parasitic Diseases and Malaria, Malaria Branch

Hours: Monday–Friday, 9:00 a.m. to 5:00 p.m. Eastern

Phone: 855-856-4713 (toll free) or 770-488-7788

After hours/weekend/holidays phone: 770-488-7100

Email: malaria@cdc.gov

Parasitic disease (non-malaria)

CDC’s Division of Parasitic Diseases and Malaria, Parasitic Diseases Branch

Hours: Monday–Friday, 8:00 a.m. to 4:00 p.m. Eastern

Phone: 404-718-4745

After hours/weekend/holidays phone: 770-488-7100

Email: parasites@cdc.gov

Website: Parasites

CDC’s Division of Parasitic Diseases and Malaria, Laboratory Sciences and Diagnostics Branch

Email: parasiteslab@cdc.gov

Website: DPDx

Rickettsial diseases and Q fever

CDC’s Division of Vector-Borne Diseases, Rickettsial Zoonoses Branch

Phone: 770-488-7100

Viral hemorrhagic fevers

CDC’s Division of High-Consequence Pathogens and Pathology, Viral Special Pathogens Branch

Phone: 770-488-7100