The Cantacuzino Institute has produced the first vaccine samples against swine flu. In the following months the vaccine will be tested on guinea pigs and then on human subjects, Dr. Geza Molnar, secretary of state within the Ministry of Health, stated. According to the secretary of state, the first batch of vaccine against swine flu will be ready for the Romanian population by the end of November. Thus, the vaccination will start in December. According to the health authorities, the Cantacuzino Institute has the capacity to prepare over seven million vaccine shots in three batches. So far 227 persons have been diagnosed with swine flu in Romania. The latest cases were confirmed yesterday when two children that returned from a trip throughout Europe tested positive. In Suceava a group of ten children with ages ranging from 15 to 16 took part in a school trip in European countries, including Great Britain. During their last day in England one of the pupils came down with fever.