Sent_en: 2ms The H1N1 virus differs from the normal seasonal flu in that it has persisted during the summer months and affected relatively healthy people under the age of 65.
Sent_yy: Virus H1N1 berbeza daripada selesema bermusim biasa dalam bahawa ia telah berterusan semasa musim panas dan menjejaskan orang agak sihat di bawah umur 65 tahun.