流感是一种由流感病毒引起的可造成大规模流行的急性呼吸道传染病。流感与普通感冒相比,症状更加严重,传染性更强,抗生素治疗无效。但流感是可以预防的,接种流感疫苗是目前最有效的预防方法。流感疫苗用于预防流行性感冒,适用于任何可能感染流感病毒的健康人,每年在流行季节前接种1次,免疫力可持续1年。流感疫苗是预防和控制流感的主要措施之一,可以减少接种者感染流感的机会或减轻流感症状。但应注意,注射流感疫苗可以预防流行性感冒病毒,但不能防止普通性感冒的发生,只能起到缓解普通感冒症状、缩短感冒周期等作用。而且即使注射了流感疫苗也要在半个月之后才能产生抗体,达到预防的目的。 Flu is an acute respiratory infection caused by the flu virus that causes pandemic. Compared with the common flu, the flu is more serious and contagious, and the antibiotic treatment is ineffective. But flu is preventable, and flu vaccination is by far the most effective way to prevent it. Influenza vaccine for the prevention of influenza, apply to any healthy people may be infected with influenza virus, vaccinated once a year before the epidemic season, the immune system can last for 1 year. Influenza vaccination is one of the main measures to prevent and control the flu, which can reduce the chances of the flu invaders or reduce the flu symptoms. However, it should be noted that the flu vaccine can prevent the influenza virus, but can not prevent the common cold, can only relieve the symptoms of common cold, shorten the cycle of cold and so on. And even if the injection of influenza vaccine also in half a month later to produce antibodies, to prevent the purpose.