Aral Sea fate. Since the disappearance of the Southeast Aral in 2008, Vozrozhdeniya effectively no longer exists as a distinct geographical feature. The area is now shared by Kazakhstan and Uzbekistan. In 1948, a top-secret Soviet bioweapons laboratory was established on the island, in the centre of the Aral Sea which is now disputed territory between Kazakhstan and Uzbekistan. The exact history, functions and current status of this facility are still unclear, but bio-agents tested there included "Bacillus anthracis", "Coxiella burnetii", "Francisella tularensis", "Brucella suis", "Rickettsia prowazekii", "Variola major" (smallpox), "Yersinia pestis", botulinum toxin, and Venezuelan equine encephalitis virus. In 1971, weaponized
Science and technology in Uzbekistan 14.1 "Note: PhD graduates in science cover life sciences, physical sciences, mathematics and statistics, and computing; PhDs in engineering also cover manufacturing and construction. For Central Asia, the generic term of PhD also encompasses Candidate of Science and Doctor of Science degrees. Data are unavailable for Turkmenistan." In 2014, Uzbekistan had a population of 29.3 million, compared to 16.6 million for Kazakhstan. The two most populous countries of Central Asia logically count the most researchers: just over 30 000 for Uzbekistan and 17 000 for Kazakhstan (in head counts), compared to a little over 2 000 for each of Kyrgyzstan