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Since March 31 confirm the findings of human infection with the H7N9 avian influenza in China, April 14, a single day of reported cases most of the day, by 11; 15 and by 3 cases. An increase in confirmed cases, as well as distribution gradually extended to Beijing, Henan, caused great public concern.
The epidemic worse? Virus "north"? April 15, the Chinese Center for Disease Control of human infection of H7N9 avian influenza emergency technical team of experts Luo Huiming an interview with reporters.
The epidemic did not change significantly, human cases may still emerging
Reporter: April 14 reported 11 cases of new diagnosed to allow the public to worry about the development of the epidemic. The emergence of new cases is not that the epidemic in increased?
Luo Huiming: In addition to the increase in cases of recent concern is: April 13 affirming that gather together the nature of human infection with the H7N9 avian flu; the new Beijing on April 13 and 14, Henan Province, confirmed human infection with the H7N9 avian influenza , the epidemic is no longer confined to the East China.
These cases suggest that human infection with the H7N9 avian influenza prevention and control situation is still grim, but we think the virus and disease characteristics did not change significantly. So far, experts believe the virus from the poultry or contaminated environment. Poultry and live poultry markets has evidence to suggest that exposure is a risk factor for carrying the virus of poultry and their droppings, secretions may be the source of infection of human infection of H7N9 avian influenza.
Recently, the East China provinces outside human cases, and this is all localities to strengthen the monitoring found that our monitoring system is sensitive to currently epidemic or experts had judged assess the expected.
Reporter: Do you think human cases in the future will continue to increase?
Luo Huiming: H7N9 avian influenza virus of avian low or no pathogenicity, greater harm to human concealment. A certain period of time the virus has been present in the detection of cases of East China, has also been present in Beijing, Henan and other places, it is estimated that the presence of the virus a wide range of whether there is a need further animal monitoring results in other parts of China.
Therefore, the next period of time, with the strengthening of the monitoring and detection capabilities, human cases may continue to emerge, it is likely to appear in the new areas; monitoring region may also increase the carrying H7N9 to poultry.
Reporter: prevention and control measures will increase or adjustment?
Luo Huiming: In view of the characteristics of the virus and the disease, the epidemic situation has not been a significant change in national level emergency response mechanism is still focused on the implementation of prevention and control measures, it is not necessary to adjust the emergency response mechanism. China's current prevention and control strategies and measures remains: to prevent and control the spread of H7N9 avian influenza virus in poultry, the H7N9 avian influenza virus infection, reducing morbidity and mortality from the source control.
Poultry trafficking, migratory birds moved north, long-distance transmission risk is worth attention.
Reporter: cases of human infection with the H7N9 avian influenza from the East China provinces and cities expanded to Beijing, Henan, the virus has "north"? Northern provinces face what kind of situation?
Luo Huiming: The infected person causes the onset of the H7N9 virus, where origin, how to spread, to how multisectoral expert in-depth research, analysis. We first found in the East China human infection with the H7N9 avian influenza, and in monitoring the detected homology H7N9 virus in the region of the patient's poultry, live poultry market environment. This can not be said that the East China must be the origin of the virus, does not exclude the sensitive monitoring of the East China, first discovered the epidemic. Beijing, Henan is now also found in human infection of H7N9 avian influenza, combined with epidemiological birds or the environment of these areas there are also the H7N9 virus, the current data is not enough to explain the virus "north" due.
H7N9 virus from poultry viruses areas remote risk of spread to other areas worthy of attention. Addition to birds trafficking, the significance of birds, wild birds in the spread of the virus is also worthy of further attention. So, the next stage, any province found that the possibility of new infections. However, some experts believe that due to the northward migration of migratory birds, the virus may be brought to the north, resulting in a slightly higher risk of transmission to humans by infecting local poultry.
With the the rising temperatures virus activity or will weaken, experts are again reminded to avoid direct contact with live poultry
Reporter: Prior to the flu occur in the winter and spring as temperatures rise, the H7N9 avian flu epidemic will change? Next epidemic progress?
Luo Huiming: Influenza is mainly in winter and spring peak, there is a peak incidence of the southern region in late spring and early summer.
This is the first time found that the H7N9 avian influenza virus infection in poultry distribution, seasonal unclear. Seasonal changes in the distribution of human infection with the H7N9 avian influenza seasonal distribution depends on the birds carry the virus. Reference influenza, human infection of H7N9 avian influenza characteristics, forecast as temperatures rise, it is estimated that the H7N9 virus activity will be weakened. In addition, the eastern and epidemic areas have been taken to the culling of infected birds, close the live bird markets measures for the source of infection prevention and control effect needs further observation, assessment.
But if more regions carrying the H7N9 virus in poultry, the more places there will be cases, from the whole country, the next step epidemic more likely to show many points, a wide range of circumstances, the number of cases will increase.
The long-term trend of human infection with the H7N9 avian influenza, the need to further strengthen the monitoring and research of the H7N9 virus between humans and animals, and ongoing assessment of the H7N9 avian influenza virus from birds to humans, human-to-human transmission and cause the risk of an influenza pandemic. This is critical for the prevention and control strategies to evaluate and adjust.
Reporter: H7N9 influenza vaccine research and development progress?
Luo Huiming: There is no vaccine for H7N9. Domestic and foreign scientists have started preliminary work to develop a vaccine. Expert assessment that requires further observation demonstrated whether to start large-scale production and use of the vaccine.
Reporter: In the present case, the public on how to do a good job of self-protection?
Luo Huiming: For the general public, to prevent infection of H7N9 avian influenza virus, the current focus remains:
First, try to avoid direct contact with live poultry class, birds or their droppings.
Second, pay attention to hand hygiene.
Third, once the fever and other respiratory symptoms, seek immediate medical attention, especially if contact with poultry within a week or visited the live bird markets, tell your doctor, if necessary, the doctor give the exclusion or further diagnosis.
The epidemic worse? Virus "north"? April 15, the Chinese Center for Disease Control of human infection of H7N9 avian influenza emergency technical team of experts Luo Huiming an interview with reporters.
The epidemic did not change significantly, human cases may still emerging
Reporter: April 14 reported 11 cases of new diagnosed to allow the public to worry about the development of the epidemic. The emergence of new cases is not that the epidemic in increased?
Luo Huiming: In addition to the increase in cases of recent concern is: April 13 affirming that gather together the nature of human infection with the H7N9 avian flu; the new Beijing on April 13 and 14, Henan Province, confirmed human infection with the H7N9 avian influenza , the epidemic is no longer confined to the East China.
These cases suggest that human infection with the H7N9 avian influenza prevention and control situation is still grim, but we think the virus and disease characteristics did not change significantly. So far, experts believe the virus from the poultry or contaminated environment. Poultry and live poultry markets has evidence to suggest that exposure is a risk factor for carrying the virus of poultry and their droppings, secretions may be the source of infection of human infection of H7N9 avian influenza.
Recently, the East China provinces outside human cases, and this is all localities to strengthen the monitoring found that our monitoring system is sensitive to currently epidemic or experts had judged assess the expected.
Reporter: Do you think human cases in the future will continue to increase?
Luo Huiming: H7N9 avian influenza virus of avian low or no pathogenicity, greater harm to human concealment. A certain period of time the virus has been present in the detection of cases of East China, has also been present in Beijing, Henan and other places, it is estimated that the presence of the virus a wide range of whether there is a need further animal monitoring results in other parts of China.
Therefore, the next period of time, with the strengthening of the monitoring and detection capabilities, human cases may continue to emerge, it is likely to appear in the new areas; monitoring region may also increase the carrying H7N9 to poultry.
Reporter: prevention and control measures will increase or adjustment?
Luo Huiming: In view of the characteristics of the virus and the disease, the epidemic situation has not been a significant change in national level emergency response mechanism is still focused on the implementation of prevention and control measures, it is not necessary to adjust the emergency response mechanism. China's current prevention and control strategies and measures remains: to prevent and control the spread of H7N9 avian influenza virus in poultry, the H7N9 avian influenza virus infection, reducing morbidity and mortality from the source control.
Poultry trafficking, migratory birds moved north, long-distance transmission risk is worth attention.
Reporter: cases of human infection with the H7N9 avian influenza from the East China provinces and cities expanded to Beijing, Henan, the virus has "north"? Northern provinces face what kind of situation?
Luo Huiming: The infected person causes the onset of the H7N9 virus, where origin, how to spread, to how multisectoral expert in-depth research, analysis. We first found in the East China human infection with the H7N9 avian influenza, and in monitoring the detected homology H7N9 virus in the region of the patient's poultry, live poultry market environment. This can not be said that the East China must be the origin of the virus, does not exclude the sensitive monitoring of the East China, first discovered the epidemic. Beijing, Henan is now also found in human infection of H7N9 avian influenza, combined with epidemiological birds or the environment of these areas there are also the H7N9 virus, the current data is not enough to explain the virus "north" due.
H7N9 virus from poultry viruses areas remote risk of spread to other areas worthy of attention. Addition to birds trafficking, the significance of birds, wild birds in the spread of the virus is also worthy of further attention. So, the next stage, any province found that the possibility of new infections. However, some experts believe that due to the northward migration of migratory birds, the virus may be brought to the north, resulting in a slightly higher risk of transmission to humans by infecting local poultry.
With the the rising temperatures virus activity or will weaken, experts are again reminded to avoid direct contact with live poultry
Reporter: Prior to the flu occur in the winter and spring as temperatures rise, the H7N9 avian flu epidemic will change? Next epidemic progress?
Luo Huiming: Influenza is mainly in winter and spring peak, there is a peak incidence of the southern region in late spring and early summer.
This is the first time found that the H7N9 avian influenza virus infection in poultry distribution, seasonal unclear. Seasonal changes in the distribution of human infection with the H7N9 avian influenza seasonal distribution depends on the birds carry the virus. Reference influenza, human infection of H7N9 avian influenza characteristics, forecast as temperatures rise, it is estimated that the H7N9 virus activity will be weakened. In addition, the eastern and epidemic areas have been taken to the culling of infected birds, close the live bird markets measures for the source of infection prevention and control effect needs further observation, assessment.
But if more regions carrying the H7N9 virus in poultry, the more places there will be cases, from the whole country, the next step epidemic more likely to show many points, a wide range of circumstances, the number of cases will increase.
The long-term trend of human infection with the H7N9 avian influenza, the need to further strengthen the monitoring and research of the H7N9 virus between humans and animals, and ongoing assessment of the H7N9 avian influenza virus from birds to humans, human-to-human transmission and cause the risk of an influenza pandemic. This is critical for the prevention and control strategies to evaluate and adjust.
Reporter: H7N9 influenza vaccine research and development progress?
Luo Huiming: There is no vaccine for H7N9. Domestic and foreign scientists have started preliminary work to develop a vaccine. Expert assessment that requires further observation demonstrated whether to start large-scale production and use of the vaccine.
Reporter: In the present case, the public on how to do a good job of self-protection?
Luo Huiming: For the general public, to prevent infection of H7N9 avian influenza virus, the current focus remains:
First, try to avoid direct contact with live poultry class, birds or their droppings.
Second, pay attention to hand hygiene.
Third, once the fever and other respiratory symptoms, seek immediate medical attention, especially if contact with poultry within a week or visited the live bird markets, tell your doctor, if necessary, the doctor give the exclusion or further diagnosis.
