An experimental vaccine provided some protection against that scourge of tourism, traveler's diarrhea, when put to a rigorous test among U.S. students in Mexico and Guatemala, scientists reported Friday.
The research provides important evidence that a &to=http://english.pravda.ru/culture/2001/09/18/' target=_blank>vaccine is possible against the hard-to-avoid germs, instead of merely urging travelers to guard against risky food and water. Now the challenge is to strengthen that protection.
"This is a very encouraging first step," said microbiologist A. Louis Bourgeois of Johns Hopkins University's Bloomberg School of Public Health, who led the study of the Swedish-developed vaccine.
Putin's official spokesman Dmitry Peskov commented on remarks in the US media about failures in launching nuclear-capable missiles in Russia
The Buk system that shot down MH17 belonged to the 53rd SAM missile brigade of the Russian Ministry of Defense, investigators say after looking at a few pictures on the net
It has long been understood that the West has been trying to subject Russian borders to total control. We have not seen such activity even during the Cold War