Twitter

You can think of Twitter as a "micro-blog". You use your computer or mobile phone to broadcast short messages, or "tweets", that are limited to 140 characters. People can sign up on Twitter to follow you tweets. You can choose to follow people and will receive their tweets, too.

Confused already? Learn more by watching this video.

Office of the Secretary (OS)

AIDS.gov / @AIDSgov
BirdFluGov / @BirdFluGov (retired)
Flu.Gov / @FluGov
GirlsHealth.gov / @girlshealth
HealthFinder.gov / @healthfinder
HHS.gov / @hhsgov
Office of Population Affairs / @opa1
WomensHealth.gov / @womenshealth

National Institutes of Health (NIH)

NIH for Health / @NIHforHealth
NIH Clinical Center / @NIHClinicalCntr
NIH Clinical Center: Pt Recruitment & Public Liaison Office / @NIHPtRecruit
NIH Library / @nihlib
NIH Medline Plus/ @medlineplus4you
NIH Science Education / @NIHSciEd
NIH Wed Afternoon Lecture Series / @NIHWALS
Dr. Betsy Nabel, NHLBI Director / @NHLBI_Nabel
Funding at NIH / @NIHforFunding
Nat’l Cancer Institute Media Relations / @NCIMedia
Nat’l Cancer Institute - Prevention / @NCIprevention
Nat’l Institute of Mental Health / @NIMHgov
Nat’l Library of Medicine: Specialized Information Service / @NLM_SIS
National Institute of Allergy & Infectious Diseases / @NIAIDnews

Food and Drug Administration (FDA)

FDA Product Recall Information / @FDArecalls
FDA Drug Information / @FDA_Drug_Info
FDA Office of Women's Health / @FDAWomen

Centers for Disease Control & Prevention (CDC)

CDC BioSense / @cdc_biosense
CDC Crisis & Emergency Risk Communication / @CDC_CERC
CDC Center for eHealth Marketing / @CDC_eHealth
CDC Emergency / @CDCemergency
CDC Flu / @CDC Flu
CDC Hepatitis / @cdchep
CDC Nat’l Prevention Information Network / @CDCNPIN
Nat’l Institute for Occupational Safety & Health / @NIOSH
Nat’l Personal Protective Tech Lab: Personal Protective Equipment / @NPPTL

Agency for Healthcare Research & Quality (AHRQ)

AHRQ News / @AHRQNews

Centers for Medicare & Medicaid Services (CMS)

CMS / @CMSGov