第一个人死于禽流感在美国，路易斯安那州卫生部确认的星期一。
官员们说，这名患者接触了非商业性的后院羊群和野生鸟类，年龄超过65岁，有潜在的医疗条件。
上个月，疾病控制和预防中心确认的该患者正在经历美国首例严重禽流感病例。
当时，路易斯安那州卫生部的一名发言人告诉ABC新闻，该患者患有与禽流感感染有关的严重呼吸道疾病，情况危急。该患者是路易斯安那州唯一确诊的人感染禽流感病例。
自4月份报告首例人类感染禽流感病例以来，美国的人类感染禽流感病例有所增加。
在周一的一份声明中，CDC表示，鉴于“已知感染这些病毒可能导致严重疾病和死亡”，美国第一例禽流感死亡“并不意外”
该机构表示，其风险评估没有改变，对公众的风险仍然很低，没有发现人际传播。
据报道，截至1月3日，美国已有66例人类感染禽流感病例疾控中心数据.
体征和症状疾病预防控制中心说，人类感染的症状通常包括喉咙痛、咳嗽、发烧、流鼻涕或鼻塞、头痛、肌肉或身体疼痛、疲劳和呼吸急促。不太常见的症状包括恶心、呕吐、腹泻和癫痫。
疾病预防控制中心说，感染可以是无症状或轻微疾病，如流感样症状，也可以是更严重的疾病，如可能需要住院治疗的肺炎。
几乎所有确诊病例都与受感染的牛或受感染的牲畜有过直接接触。根据CDC和州卫生官员的说法，除了路易斯安那州患者的确诊病例外，病例都很轻微，患者在接受抗病毒药物治疗后都已康复。
密苏里州以前的一个病例被送进医院，但是卫生官员指出，除了禽流感感染之外，病人入院还涉及其他健康问题。
路易斯安那州卫生部和疾病预防控制中心表示，没有人传人的证据，对公众的风险很低。
然而，那些与鸟类、家禽或奶牛一起工作的人——或者娱乐性接触它们的人——风险更高。
疾病控制中心建议远离生病或死亡的野生鸟类、家禽和其他动物，如果接触不可避免，使用个人防护设备。
该机构还建议不要接触被证实或怀疑患有禽流感的野生或家养鸟类和动物的唾液、粘液或动物粪便污染的表面或材料，也不要食用生牛奶或生奶制品。
美国农业部发布了新的联邦命令上个月，全国范围内的原料奶样本将被收集并与该部门共享，以便检测禽流感。
几周后，食品药品监督管理局宣布联邦卫生官员已经开始收集陈年生牛乳干酪的样品在美国各地检测禽流感
1st bird flu death in the US reported in Louisiana
The first person has died ofbird fluin the United States, the Louisiana Department of Healthconfirmedon Monday.
The patient, who was exposed to non-commercial backyard flock and wild birds, was over age 65 and had underlying medical conditions, officials said.
Last month, the Centers for Disease Control and Preventionconfirmedthe patient was experiencing the first case of severe bird flu in the U.S.
At the time, a spokesperson from the Louisiana Department of Health told ABC News the patient was experiencing severe respiratory illness related to bird flu infection and was in critical condition. The patient remains the only human case of bird flu confirmed in Louisiana.
The U.S. has seen an increase in human cases of bird flu, or avian influenza, since April, when the first human case was reported.
In a statement on Monday, the CDC said the first bird flu death in the U.S. was "not unexpected" given the "known potential for infection with these viruses to cause severe illness and death."
The agency said its risk assessment has not changed, that the risk to the general public remains low and no person-to-person transmission has been identified.
As of Jan. 3, there have been 66 human cases of bird flu reported in the U.S., according toCDC data.
Signs and symptomsof infection in humans often include sore throat, cough, fever, runny or stuffy nose, headache, muscle or body aches, fatigue and shortness of breath, the CDC says. Less common symptoms include nausea, vomiting, diarrhea and seizures.
Infections can range from no symptoms or mild illness, such as flu-like symptoms, to more severe illness, such as pneumonia that could require hospitalizations, the CDC says.
Almost all confirmed cases have had direct contact with infected cattle or infected livestock. Aside from the case confirmed in the Louisiana patient, cases have been mild, and patients had all recovered after receiving antiviral medication, according to the CDC and state health officials.
One previous case in Missouri was hospitalized, but health officials pointed to other health conditions aside from bird flu infection involved in the patient's admission to the hospital.
The Louisiana Department of Health and the CDC say there is no evidence of person-to-person transmission and the risk to the general public is low.
However, those who work with birds, poultry or cows -- or have recreational exposure to them -- are at higher risk.
The CDCrecommendsstaying away from sick or dead wild birds, poultry and other animals and, if contact is unavoidable, using personal protective equipment.
The agency also suggests not touching surfaces or materials contaminated with saliva, mucous or animal feces from wild or domestic birds and animals confirmed or suspected to have bird flu as well as not consuming raw milk or raw milk products.
The U.S. Department of Agricultureissued a new federal orderlast month that raw milk samples nationwide will be collected and shared with the department in order to test for bird flu.
A few weeks later, the Food and Drug Administration announced that federal health officials had beguncollecting samples of aged raw cow's milk cheeseacross the U.S. to test for bird flu
