Judy Woodruff:

Now we continue our series on the AIDS epidemic, returning again to Russia.

Last night, we looked at how injection drug use initially drove the epidemic there, where it's estimated that one million people are HIV-positive.

Tonight, correspondent William Brangham and producer Jason Kane return to look at the other factors behind the continued growth of this epidemic, and how the Russian government is responding.

This series was produced in partnership with the Pulitzer Center.