在加利福尼亚病毒样本中发现的两种菌株的基因很常见，属于北美和欧亚猪流感株。
The two strains whose genes are found in the hybrid belong to influenza families known generally as North American and Eurasian pig flu.
这项研究的结果在2月28日美国加利福尼亚州洛杉矶逆转录病毒和机会感染会议上提出。
The study's findings were presented at the Conference on Retroviruses and Opportunistic Infections in Los Angeles, California, us, on 28 February.
但是在加利福尼亚爆发麻疹疫情之后现在病毒已经感染了14个州的102人。政客们也纷纷加入到了关于接种疫苗的激烈争论。
But after a measles outbreak in California, the disease has now spread to 102 people in 14 states. Politicians are joining the heated conversation about vaccines.
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