H7N9 avian influenza Latest news: Shandong parent-child cases significant differences difficult to witness descendant
Latest news of the H7N9 avian influenza, as of now, the Department of Shandong reported two cases of human infection with the H7N9 avian influenza confirmed cases, a parent-child relationship, this is the first time in Shanghai family gathering cases, experts said, that his father clinical symptoms difference , it is difficult to prove that the H7N9 avian flu virus can be transmitted person to person.
April 28 report of the Health Department of Shandong, Shandong new case of human infection of H7N9 avian influenza confirmed cases. Children Zhang, male, 4 years old, live in Zaozhuang City, and its parent Shandong Province on the 25th confirmed the first case of human infection of H7N9 avian influenza confirmed cases. According to the initial findings and conclusion of the study at home and abroad, has not yet found evidence of infection.
Obvious differences in parent-child symptoms
The father and son has illness, mean that H7N9 rendering the performance of human-to-human transmission? The provincial medical treatment team leader, Professor Gao Taichuan interview that the difference of the clinical symptoms of the Father and of the Son and of the two.
Professor Gao Taichuan describes the situation of children is relatively stable infection are pediatric emergency room treatment, eating and sleeping is relatively normal. Children showing the local symptoms of pneumonia, but her condition is not severe but not critically ill. According to the clinical diagnosis, the children viruses and bacteria combined infection, white blood cell count is high. Contrast diagnosis based on the beginning of the incidence and six hours later, the development of the children's condition and did not show the rapid deterioration of the situation.
Shandong second case of human infection of H7N9 patients did not enter the intensive care unit, but for isolation and treatment of infectious diseases in the hospital
"Taking the cure within 48 hours of onset, which is very timely." Tall Chuan said, according to the child's weight, the children have been taking a 45 mg dose of Tamiflu.
Zaozhuang City, director of Critical Care Medicine Li Jinyuan to introduce children are mild lung tissue damage, does not belong to the ranks of the severe. The children did not go into the intensive care unit for quality, but in Zaozhuang Municipal Hospital of Infectious Diseases, a separate ward for treatment. Li Jinyuan said that before the Beijing cure H7N9 avian influenza girl children, but children more serious cases than Beijing.
The progression of the disease but the children's father is unstable, on admission, no obvious pathological symptoms, but the hospital after 4 hours, the rapid development of the disease, the rate of deterioration soon. "Tall Chuan said the children's father after 7 days after emergency treatment, although not completely out of danger, but relatively stable vital signs, do not need the support of ECMO (artificial heart-lung machine).
No clear evidence of human-to-human transmission "
On a time basis, the children are the father hospitalized six days, was found to have a fever. As the original 12 in close contact with one of the children in the Interrupted been determined not showing flu-like symptoms, overwhelmed diagnosed is a "human-to-human transmission performance?
Tall Chuan, because the presence of a history of close contact, not directly related to exclude possible, but only from the point of view of symptoms, the gap between the two is obvious. Shandong Zaozhuang father and son have confirmed human infection of H7N9 avian influenza, at present, only from the point of view of clinical symptoms, father and son performance difference is obvious on avian flu "human-to-human transmission," saying there is no clear evidence to support. "
The same time, on a time basis, the degree of association of the symptoms of the father and son do not have the "human-to-human transmission performance. H7N9 avian influenza longest incubation period of seven days, the children in father hospitalized for 8 days, was found to have a fever, children diagnosed with the H7N9 avian influenza patients time the past 10 days. This case, the emergence of the cases of familial aggregation, does not mean that the virus H7N9 has mutated into a human influenza virus continued to spread from person to person.
Chicken originally bred in the patients of the neighborhood has been processed, sheds and also sprinkle lime powder disinfection
For the presence or absence of contact between the children and their father's illness, the existence of the possibility of human-to-human transmission. Zaozhuang City, director of Critical Care Medicine Li Jinyuan to represent and found no evidence of human-to-human transmission, and he pointed out that the prevalence of children with their parent contact will study as a research direction, but one or two patients can not be drawn from person to person conclusions.
Previously, Shanghai, there have been two cases of human infection with the H7N9 avian influenza family of clusters of cases, involving a couple and a father and son. WHO study concluded that the husband and wife and parent-child co-incidence small-scale gathering the onset still can not prove the existence of human-to-human transmission, the key to studying the co-exposure history, may be common exposure to animal or a certain environment.
Feng Zijian, director of the Chinese Center for Disease Control Health Emergency Center also said that the emergence of a small amount of family clusters of cases, does not mean that the H7N9 virus has mutated into a human influenza virus continued to spread from person to person, but does not exclude the presence of limited human-to-human transmission "capability. Currently, the state health department epidemiological and laboratory investigations of all cases trace shows that H7N9 is an avian influenza virus, the main mode of transmission of infection from birds to people.http://www.guancha.cn/society/2013_04_30_141551.shtml
