CHELYABINSK 20040113 Virologist Natalya Ott pictured at work at the Chelyabinsk Regional Centre for Sanitary and Epidemic Inspection, where the second PCR (polymerase chain reaction) laboratory is installed, bought by the funds from the region's budget. The new lab allows to detect SARS virus and other infectious diseases quickly, and to detect genetic changes in food products. Foto BUSHUKHIN/ ITAR TASS/ SIPA / SCANPIX Code 20667 ref 487176 ***BETALBILD*** *** Local Caption *** 487176