日本流感疫情持续蔓延 专家：日医疗体系将面临较大压力

Core Insights - The current flu outbreak in Japan is driven by the H3N2 strain, which has strong transmissibility and immune evasion characteristics, leading to a potential increase in infection rates compared to previous years [1][5][9] Group 1: Virus Characteristics - The H3N2 strain is similar to seasonal flu but can lead to severe cases, including myocarditis and encephalitis if it enters the bloodstream or brain [3][4] - There is a general lack of immunity among the population against the H3N2 strain, which accelerates the spread of the virus [5][7] Group 2: Infection Rates and Impact - The infection rate for seasonal flu is typically around 50%, suggesting that this year could see even higher rates of infection due to the H3N2 strain's increased transmissibility [7] - The flu season has started over a month earlier than usual, putting significant pressure on Japan's healthcare system, with reports of flu alerts and school closures increasing [9][10]