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1.
Chinese Journal of Epidemiology ; (12): 481-484, 2010.
Artigo em Chinês | WPRIM | ID: wpr-277753

RESUMO

Objective To evaluate the safety and epidemiological effects on the first mass vaccination program, using the China-made A (H1N1) influenza vaccine. Methods Descriptive epidemiology and cohort study design were used to assess the influenza A H1N1 vaccine on its safety and epidemiological effects. Results 95 244 subjects were immunized with A (H1N1) influenza vaccine. 193 adverse events were reported through AEFI Management System, with the Reported rates after immunization was carried out. Of 81 adverse reactions confirmed to be related to immunization,reported through the AEFI Management System. The epidemiological protection rate of A (H1N1)influenza vaccine showed a similar safety profile to seasonal flu vaccine. The vaccine demonstrated a good epidemiological effects against A (H1N1) influenza virus infection.

2.
Biomedical and Environmental Sciences ; (12): 445-451, 2006.
Artigo em Inglês | WPRIM | ID: wpr-249904

RESUMO

<p><b>OBJECTIVE</b>To summarize lessons learned from an outbreak of severe acute respiratory syndrome (SARS) in China during the spring of 2004.</p><p><b>METHODS</b>Data of SARS cases were officially reported by Beijing Municipal Center for Disease Control and Prevention (BCDC) and Anhui Provincial Center for Disease Control and Prevention (APCDC) and results of epidemiological investigations were collected and analyzed.</p><p><b>RESULTS</b>Three generations of 11 cases of SARS were identified during the outbreak. Initial two cases were most likely to be infected in Diarrhea Virus Laboratory of National Institute of Virology, China Centers for Disease Control and Prevention and main mode of transmission was direct contact with SARS patients. Delay in detecting initial case resulted in spread of the illness at hospitals and communities with two generations of secondary cases.</p><p><b>CONCLUSIONS</b>SARS outbreak in 2004 has yielded following lessons for public health globally. (1) Lab bio-safety programs should be made and should be strictly abided by. Studies in highly pathogenic viruses such as SARS coronavirus should be utmost cautious. (2) Management systems of occupational exposure to virus and disease surveillance need to be strengthened to take all risk factors into account so as to detect potential patients with infectious disease as early as possible.</p>


Assuntos
Feminino , Humanos , Masculino , China , Epidemiologia , Surtos de Doenças , Exposição Ocupacional , Saúde Ocupacional , Estudos Retrospectivos , Síndrome Respiratória Aguda Grave , Epidemiologia
3.
Chinese Journal of Epidemiology ; (12): 557-560, 2003.
Artigo em Chinês | WPRIM | ID: wpr-348815

RESUMO

<p><b>OBJECTIVE</b>To explore the characteristics of severe acute respiratory syndrome (SARS) transmission in the population base on analyzing the first imported case and the chains of transmission.</p><p><b>METHODS</b>For the first imported SARS case and cases who were transmitted by the index case, epidemiological investigations were conducted using the guidelines for surveillance and case investigation issued by the Ministry of Health. Data as the date of onset of symptoms, date of hospitalization, contact history etc. for each of the cases and their close contacts were collected and analyzed.</p><p><b>RESULTS</b>The first imported SARS case introduced to Beijing had infected 9 people within the family and at the hospital, with two of whom died of the same disease. The incubation period for that index case was 4 days, and that for the cases considered to be the secondary and tertiary generations were 7 and 8 days, respectively. The shorter the incubation period, the longer the fever would last and clinically more severe.</p><p><b>CONCLUSION</b>One of the epidemiological characteristics of SARS in Beijing was noticed that the disease clustered in families and hospitals. Infection through droplets and close contact has been viewed as the primary mode of transmission.</p>


Assuntos
Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , China , Epidemiologia , Busca de Comunicante , Infecção Hospitalar , Saúde da Família , Transmissão de Doença Infecciosa do Paciente para o Profissional , Síndrome Respiratória Aguda Grave , Epidemiologia
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