Annual Summary (2010)
Analysis: Twitter is an online social networking and micro-blogging Web site that is used to provide information, commentary and descriptions of events and highlight certain audio and video content. Twitter users send updates, or ‘tweets,’ which are 140 characters or less in length. Individual users can ‘follow’ another user’s updates. These four CDC profiles have provided more than 1,617 updates to a combined 1,411,359 followers since October 2008.
OADC maintains five Twitter profiles to share nearly 1,462 updates that reach a collective following of over 1.41 million followers with a variety of general health and safety tips, social media updates, emergency preparedness and response information, and flu vaccination and seasonal flu updates in both English and Spanish.
A "clickthrough" is when a tweet (or linked post) on Twitter has been clicked on and the user arrives on a CDC landing page for more information. Over 48,125 clickthroughs from CDC's Twitter accounts occured during 2010.

| Followers | Updates | |
|---|---|---|
| CDC eHealth | 85,793 | 420 |
| CDC Emergency | 1,243,558 | 364 |
| CDC Flu | 70,351 | 281 |
| CDCgov | 11,565 | 367 |
| CDC Espanol | 92 | 30 |
| Total | 1,411,359 | 801 |

Tweet Clickthroughs to CDC.gov Content
CDC Twitter - Flu |
CDC Twitter - Emergency |
CDC Twitter - eHealth |
CDC Twitter - CDCgov |
CDC Espanol |
|
|---|---|---|---|---|---|
| January 2010 | 1,457 | 3,212 | 104 | - | |
| February 2010 | 612 | 1,497 | 3,771 | - | |
| March 2010 | 656 | 828 | 783 | - | |
| April 2010 | 392 | 650 | 1,214 | - | |
| May 2010 | 338 | 1,064 | 552 | 161 | |
| June 2010 | 282 | 2,366 | 489 | 706 | |
| July 2010 | 216 | 2,328 | 390 | 1,219 | |
| August 2010 | 1,921 | 243 | 601 | 3,226 | |
| September 2010 | 1,426 | 226 | 721 | 958 | |
| October 2010 | 1,617 | 392 | 345 | 1,387 | |
| November 2010 | 1,467 | 461 | 717 | 583 | |
| December 2010 | 1,797 | 1,019 | 433 | 1,420 | 104 |
| Total | 10,314 | 6,294 | 10,120 | 19,519 | 104 |


