From April 12, 2009 to April 10, 2010, CDC estimated there were 60.8 million cases (range: 43.3-89.3 million), 274,304 hospitalizations (range: 195,086-402,719), and 12,469 deaths (range: 8868-18,306) in the United States due to the (H1N1)pdm09 virus. https://www.cdc.gov/flu/pandemic-resources/2009-h1n1-pandemic.html 算一下死亡率 12,469/60.8million=0.0205%
In April 2009, an outbreak of influenza-like illness (ILI) occurred in Mexico and then in the United States; the CDCreported seven cases of novel A/H1N1 influenza and promptly shared the genetic sequences on the GISAID database.[25][26] With similar timely sharing of data for Mexican isolates,[27] by 24 April it became clear that the outbreak of ILI in Mexico and the confirmed cases of novel influenza A in the southwest US were related and WHO issued a health advisory on the outbreak of "influenza-like illness in the United States and Mexico".[28] The disease then spread very rapidly, with the number of confirmed cases rising to 2,099 by 7 May, despite aggressive measures taken by the Mexican government to curb the spread of the disease.[29] The outbreak had been predicted a year earlier by noticing the increasing number of replikins, a type of peptide, found in the virus.[30] On 11 June 2009, the WHO declared an H1N1 pandemic, moving the alert level to phase 6, marking the first global pandemic since the 1968 Hong Kong flu.[31] On 25 October 2009, six months after his administration had declared swine flu a national emergency, U.S. President Barack Obama officially declared H1N1 a national emergency[32] The President's declaration caused many U.S. employers to take actions to help stem the spread of the swine flu and to accommodate employees and / or workflow which may have been impacted by an outbreak.[33] 你自己看吧。看看是谁蠢猪。墨西哥爆发四月份，他已经是总统了好吗，到10月才宣布紧急状态。
From April 12, 2009 to April 10, 2010, CDC estimated there were 60.8 million cases (range: 43.3-89.3 million), 274,304 hospitalizations (range: 195,086-402,719), and 12,469 deaths (range: 8868-18,306) in the United States due to the (H1N1)pdm09 virus.
https://www.cdc.gov/flu/pandemic-resources/2009-h1n1-pandemic.html
算一下死亡率 12,469/60.8million=0.0205%
这个是不同类型病毒传播能力的比较 2.12日在Umich 上估计的地方
https://sph.umich.edu/pursuit/2020posts/how-scientists-quantify-outbreaks.html
当然现在比较多引用的2-2.5
但按照这个病毒的致死率远高于H1N1病毒（至少是100倍以上），若爆发规模与2009年的swine flu相当已不可想象，更何况在R0值比H1N1还高的情况下。
大家能给出一些在北美Covid-19感染人数会远低于2009 swine flu的理由吗？【要远低于 因为60.8million太多太多了】
墨西哥传过来，美国爆发，民主党政府搞open boarder，他们谁也不关，刚好给全世界传了个遍。现在被中国说事人家也是说的对的。你当初也是搞得全世界不安宁。但是h1n1死亡率差远了，全世界的一遍，死了几十万人，这里都没什么人注意。这个新冠如果同样掉以轻心，起嘛死千万级别。
这个差异是数量级上的差异
就感染人数上，COVID-19唯一追回来的机会，是H1N1出疫苗出的很快，5个月就出来了。而COVID-19预计疫苗出的很慢。
08年大选完，奥巴马09年几月才就职，就搞好了open boarder了？他真是行动力刚刚的啊！我服了，下次就选他！
H1N1真的不可怕，致死率非常非常低
而且传染率这么强的病，不去防是对的，这东西是根本防不住的，也完全没有防的意义
总统一月底才就职，那时候墨西哥已经开始流行了嘛。奥巴马连推给布什都不会，蠢猪一个，烂泥扶不上墙。
open boarder 是民主党一贯的政策好吗同学，我的意思他绝对不会因为这个关闭美墨边境。
In April 2009, an outbreak of influenza-like illness (ILI) occurred in Mexico and then in the United States; the CDCreported seven cases of novel A/H1N1 influenza and promptly shared the genetic sequences on the GISAID database.[25][26] With similar timely sharing of data for Mexican isolates,[27] by 24 April it became clear that the outbreak of ILI in Mexico and the confirmed cases of novel influenza A in the southwest US were related and WHO issued a health advisory on the outbreak of "influenza-like illness in the United States and Mexico".[28] The disease then spread very rapidly, with the number of confirmed cases rising to 2,099 by 7 May, despite aggressive measures taken by the Mexican government to curb the spread of the disease.[29] The outbreak had been predicted a year earlier by noticing the increasing number of replikins, a type of peptide, found in the virus.[30] On 11 June 2009, the WHO declared an H1N1 pandemic, moving the alert level to phase 6, marking the first global pandemic since the 1968 Hong Kong flu.[31] On 25 October 2009, six months after his administration had declared swine flu a national emergency, U.S. President Barack Obama officially declared H1N1 a national emergency[32] The President's declaration caused many U.S. employers to take actions to help stem the spread of the swine flu and to accommodate employees and / or workflow which may have been impacted by an outbreak.[33]
你自己看吧。看看是谁蠢猪。墨西哥爆发四月份，他已经是总统了好吗，到10月才宣布紧急状态。
你倒不如说2009年god bless america，天佑总统呗，没关闭美墨边境，结果H1N1到了美国死亡率降到那么低，很多人都没感觉就平稳度过。哪里像现在，又是travel ban，又是造墙，结果还是一片人心惶惶，鸡飞狗跳。
死亡率低不等于死亡的人少。死了一万多人，全世界死了几十万。
上次被糊弄过去。这是一笔血帐啊。
哈哈