Sakhalinsk, Russia, October 06, SPA -- Twenty-eight new cases of A/H1N1 influenza were registered in Sakhalin over the past week, Itar-Tass reported. A total of 46 diseased have been registered since the first case of the disease was revealed three months ago. All the patients had alight form of the disease with no grave consequences, the press service of the Sakhalin regional department of the Rospotrebnadzor Russian Federal Consumer Rights Protection and Human Health Control Service reported on Tuesday. According to head doctor of the city hospital Vadim Pomogayev, about 10 people underwent treatment there, most of them caught the new A/H1N1 flu abroad. Additional medical brigades have been formed at Yuzhno-Sakhalinsk medical establishments to fight this disease. The Rospotrebnadzor regional department believes, however, that the number of people who applied for urgent aid on suspicion of having contracted the new type influenza has decreased over the past several days. A total of 23 schools are closed in Yuzhno-Sakhalinsk today, but not only due to the new flu threat. Acute respiratory viral infection is more spread in the city.