1.   And state health officials are tracking mosquitoes near Nogales and Tucson in an effort to determine whether they are carriers of painful dengue.

2.   A database of immigrant deaths and rescues was created, said spokeswoman Kice, and officials are tracking all rescues and fatalities so they can shift resources as needed.

3.   A database of migrant deaths and rescues was created, said spokeswoman Kice, and officials are tracking all rescues and fatalities so they can shift resources as needed.

4.   FBI officials tracked suspects around the world.

5.   Flower and food peddlers and other freelance entrepreneurs, many of them illegal immigrants, form an underground economy but it is not one that officials here track.

6.   Florida panthers have become so scarce that wildlife officials track the few dozen remaining ones with electronic collars.

7.   Health officials tracked the sick patrons down by contacting everyone who paid their bills by credit card.

8.   Hong Kong officials track U.S. monetary policy an effort to maintain the peg.

9.   Inside the ShotLink truck, several officials track the scorers and route the results to the right places.

10.   Some parent groups had also raised privacy concerns, since theoretically officials could track when and where a particular card had been used.