Zika Cases in the U.S. Now Stand at 5,001, With 36,638 Reported in U.S. Territories
The latest update from the Arboviral Disease Branch of the federal Centers for Disease Control shows a new total of 5,001 cases of the Zika virus reported in the United States and Washington, D.C., from Jan. 1, 2015, through Feb. 8, 2017, up from 4,866 through Jan. 11, and 36,638 cases reported in the U.S. territories (mostly in Puerto Rico), up from 35,280 last month.
The new update found the number of locally acquired mosquito-borne cases of Zika virus reported in the United States at 220 (up from 216 last month). The total number of travel-associated cases reported stood at 4,780 (up from 4,649 last month), with one reported laboratory-acquired case (unchanged from last month), resulting in a total of 5,001 infections. Of these, 41 were determined to be sexually transmitted (up from 38).
In the U.S. territories, (encompassing Puerto Rico, American Samoa and the U.S. Virgin Islands), the number of locally acquired cases reported since Jan. 1, 2015, reached a total of 36,498 (up from 35,280 last month), with 140 travel-associated cases (up from 135), for a total of 36,498 (up from 35,415). Puerto Rico alone accounted for 35,421 cases (up from 34,249 last month, but the CDC cautioned this represents retroactively reported cases as well), and a total of 140 travel-associated cases (up from 132).
The CDC noted that sexually transmitted cases are not reported for U.S. territories "because with local transmission of Zika virus, it is not possible to determine whether infection occurred due to mosquito-borne or sexual transmission," according to the latest update.
State by state, updated statistics encompassing 2015-2017 show Florida had 214 cases of locally transmitted Zika (up from 210 last month), representing 97 percent of such cases in the U.S. (unchanged). Texas, the only other state reporting locally transmitted infections, had 6 such cases, unchanged from last month. In terms of travel-associated cases, New York had the most (1,008, up from 997 cases), followed by Florida (855, up from 833), California (414, up from 393) and Texas (298, up from 290).
A related CDC report offered updated statistics on pregnant women showing laboratory evidence of possible Zika virus infection in the United States (including the District of Columbia), with the count at 1,394 (up from 1,292 as of Dec. 27, 2016). For U.S. territories, including data from Puerto Rico, the number stood at 3,071 (up from 2,842).
In terms of outcomes, the CDC reported that out of a reported 999 completed pregnancies by women with laboratory evidence of possible Zika infection in the United States as of Jan. 24, 2017 (up from 875 month-over-month), the numbers stood at 38 live-born infants with birth defects associated with the virus (up by two), and five pregnancy losses with birth defects attributed to Zika, that number unchanged since the last update.