 Nyorai mberi kweiyi ndima - China neUnited States chete ndidzo dzakatambira chiitiko ichi kanopfuura kamwe chete. Mubairo wegore ra2003 wakapiwa kuChina, asi wakaendeswa kuUnited States muna Chivabvu 2003 nekuda kwedenda reSARS. China panzvimbo pezvo yakapihwa kodzero yekugamuchira shanduro inoteveramuna 2007. 