Key Focus

  • of whom were asymptomatic, according to official Japanese figures.
    An EU report has put the proportion of asymptomatic cases in Italy at 44 per cent, but in most parts of the country people without symptoms are not tested.
    Viruses aren.t just a threat to public health, they are essential to life on Earth
    21 Mar 2020
    In Hong Kong, 16 of the 138 confirmed cases as of March 14 were asymptomatic or presymptomatic, according to Ho Pak-leung, a professor with the microbiology department of the University of Hong Kong.
    All of these numbers point to a significantly higher ratio of asymptomatic cases than indicated by data publicly released by China so far
  • There were 889 asymptomatic patients among the 44,672 confirmed cases as of February 11, epidemiologists from the Chinese Centre for Disease Control and Prevention wrote in a paper published online in JAMA Network Open on February 24.
    The WHO has said the role of asymptomatic transmissions in the spread of the disease was not clear, but carriers without symptoms were unlikely to be a key factor overall.
    However, some scientists are asking whether asymptomatic and presymptomatic transmissions have been underestimated.
    A joint study by experts in China, the US, Britain and Hong Kong estimated that undocumented cases of the pneumonia, mostly with mild or even no symptoms, were the source of infection for 79 per cent of documented ones before Wuhan was locked down on January 23.
    .These undocumented infections often experience mild, limited, or no symptoms and hence go unrecognised, and, depending on their contagiousness and numbers, can expose a far greater portion of the population to the virus than would otherwise occur,


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High Level Topics

  • ASYMPTOMATIC
  • CHINA
  • HONG_KONG
  • UNIVERSITY
  • High Level Abstractions

  • ASYMPTOMATIC(6, 0 Order)
  • ( ASYMPTOMATIC )(6, 0 Order)  top
  • ( ASYMPTOMATIC, CHINA )(5, 1st Order)  top
  • ( ASYMPTOMATIC, CHINA, HONG_KONG )(2, 2nd Order)  top
  • ( ASYMPTOMATIC, CHINA, COUNTRIES )(2, 2nd Order)  top
  • ( ASYMPTOMATIC, CHINA, VIRUS )(2, 2nd Order)  top
  • ( ASYMPTOMATIC, CHINA, UNDOCUMENTED )(1, 2nd Order)  top
  • ( ASYMPTOMATIC, CHINA, PRESYMPTOMATIC )(2, 2nd Order)  top
  • ( ASYMPTOMATIC, CHINA, POSITIVE )(1, 2nd Order)  top
  • ( ASYMPTOMATIC, CHINA, DISEASE_CONTROL )(2, 2nd Order)  top
  • ( ASYMPTOMATIC, CHINA, WUHAN )(1, 2nd Order)  top
  • ( ASYMPTOMATIC, CHINA, WORLDWIDE )(1, 2nd Order)  top
  • ( ASYMPTOMATIC, CHINA, UNRECOGNISED )(1, 2nd Order)  top
  • ( ASYMPTOMATIC, CHINA, UNIVERSITY )(1, 2nd Order)  top
  • ( ASYMPTOMATIC, HONG_KONG )(3, 1st Order)  top
  • ( ASYMPTOMATIC, VIRUS )(3, 1st Order)  top
  • ( ASYMPTOMATIC, POSITIVE )(2, 1st Order)  top
  • ( ASYMPTOMATIC, COUNTRIES )(2, 1st Order)  top
  • ( ASYMPTOMATIC, UNIVERSITY )(2, 1st Order)  top
  • ( ASYMPTOMATIC, UNDOCUMENTED )(1, 1st Order)  top
  • ( ASYMPTOMATIC, PRESYMPTOMATIC )(2, 1st Order)  top
  • ( ASYMPTOMATIC, INFECTION )(2, 1st Order)  top
  • ( ASYMPTOMATIC, HEALTH )(2, 1st Order)  top
  • ( ASYMPTOMATIC, EXPERTS )(1, 1st Order)  top
  • ( ASYMPTOMATIC, DISEASE_CONTROL )(2, 1st Order)  top
  • CHINA(4, 0 Order)
  • ( CHINA )(4, 0 Order)  top
  • HONG_KONG(4, 0 Order)
  • ( HONG_KONG )(4, 0 Order)  top
  • UNIVERSITY(3, 0 Order)
  • ( UNIVERSITY )(3, 0 Order)  top
  • References

    • ( ASYMPTOMATIC )  top
    • ( ASYMPTOMATIC, CHINA )  top
    • ( ASYMPTOMATIC, CHINA, HONG_KONG )  top
    • (Read more)   top
      In Hong Kong, 16 of the 138 confirmed cases as of March 14 were asymptomatic or presymptomatic, according to Ho Pak-leung, a professor with the microbiology department of the University of Hong Kong.
      All of these...
    • (Read more)   top
      A joint study by experts in China, the US, Britain and Hong Kong estimated that undocumented cases of the pneumonia, mostly with mild or even no symptoms, were the source of infection for 79 per cent of documented ones before Wuhan was locked down on January 23.
      .These...
    • ( ASYMPTOMATIC, CHINA, COUNTRIES )  top
    • (Read more)   top
      That could further complicate the strategies being used by countries to contain the virus, which has infected more than 280,000 people and killed nearly 13,000 globally.
      More than 43,000 people in China had tested positive for Covid-19 by the end of February but had...
    • (Read more)   top.Korea currently has a significantly higher rate of asymptomatic cases than other countries, perhaps due to our extensive testing,.
    • ( ASYMPTOMATIC, CHINA, VIRUS )  top
    • (Read more)   top
      That could further complicate the strategies being used by countries to contain the virus, which has infected more than 280,000 people and killed nearly 13,000 globally.
      More than 43,000 people in China had tested positive for Covid-19 by the end of February but had no immediate symptoms,...
    • (Read more)   top ... undocumented infections often experience mild, limited, or no symptoms and hence go unrecognised, and, depending on their contagiousness and numbers, can expose a far greater portion of the population to the virus than would otherwise occur,.
    • ( ASYMPTOMATIC, CHINA, UNDOCUMENTED )  top
    • (Read more)   top
      A joint study by experts in China, the US, Britain and Hong Kong estimated that undocumented cases of the pneumonia, mostly with mild or even no symptoms, were the source of infection for 79 per cent of documented ones before Wuhan was locked down on January 23.
      .These undocumented infections...
    • ( ASYMPTOMATIC, CHINA, PRESYMPTOMATIC )  top
    • (Read more)   top
      In Hong Kong, 16 of the 138 confirmed cases as of March 14 were asymptomatic or presymptomatic, according to Ho Pak-leung, a professor with the microbiology department of the University of Hong Kong.
      All of these numbers point to a significantly higher ratio of asymptomatic cases than indicated...
    • (Read more)   top
      However, some scientists are asking whether asymptomatic and presymptomatic transmissions have been underestimated.
      A joint study by experts in China, the US, Britain and Hong Kong estimated that undocumented cases of the pneumonia, mostly with mild or even no symptoms, were...
    • ( ASYMPTOMATIC, CHINA, POSITIVE )  top
    • (Read more)   top could be as high as one-third of those who test positive, according to classified Chinese government data seen by the South China Morning Post.
      That could further complicate the strategies being used by countries to contain the virus, which has infected...
    • ( ASYMPTOMATIC, CHINA, DISEASE_CONTROL )  top
    • (Read more)   topare the most comparable to China.s. More than 20 per cent of the asymptomatic cases reported to the Korea Centres for Disease Control and Prevention remained without symptoms until they were discharged from hospital.
      .Korea currently has a significantly higher rate of asymptomatic cases than other countries, perhaps due to our...
    • (Read more)   top There were 889 asymptomatic patients among the 44,672 confirmed cases as of February 11, epidemiologists from the Chinese Centre for Disease Control and Prevention wrote in a paper published online in JAMA Network Open on February 24.
      The WHO has said the role of asymptomatic transmissions in the spread of the disease was not clear, but carriers...
    • ( ASYMPTOMATIC, CHINA, WUHAN )  top
    • (Read more)   top ... in China, the US, Britain and Hong Kong estimated that undocumented cases of the pneumonia, mostly with mild or even no symptoms, were the source of infection for 79 per cent of documented ones before Wuhan was locked down on January 23.
      .These undocumented infections often experience mild, limited, or no symptoms and hence go unrecognised, and, depending on their contagiousness and numbers, can expose...
    • ( ASYMPTOMATIC, CHINA, WORLDWIDE )  top
    • (Read more)   top.The number of novel coronavirus (Covid-19) cases worldwide continues to grow, and the gap between reports from China and statistical estimates of incidence based on cases diagnosed outside China indicates that a substantial number of cases are underdiagnosed,
    • ( ASYMPTOMATIC, CHINA, UNRECOGNISED )  top
    • (Read more)   top.These undocumented infections often experience mild, limited, or no symptoms and hence go unrecognised, and, depending on their contagiousness and numbers, can expose a far greater portion of the population to the virus than would otherwise occur,
    • ( ASYMPTOMATIC, CHINA, UNIVERSITY )  top
    • (Read more)   top
      In Hong Kong, 16 of the 138 confirmed cases as of March 14 were asymptomatic or presymptomatic, according to Ho Pak-leung, a professor with the microbiology department of the University of Hong Kong.
      All of these numbers point to a significantly higher ratio of asymptomatic cases than indicated by data publicly released by China so far
    • ( ASYMPTOMATIC, HONG_KONG )  top
    • (Read more)   topSee ( ASYMPTOMATIC , CHINA , HONG_KONG )
    • (Read more)   top
      Benjamin Cowling, an epidemiology and biostatistics professor at the University of Hong Kong, said there was .clear evidence that infected persons could transmit infection before symptoms appear..
      .There are many reports of transmission around one to two days before symptom onset,
    • ( ASYMPTOMATIC, VIRUS )  top
    • (Read more)   topSee ( ASYMPTOMATIC , CHINA , VIRUS )
    • (Read more)   top he said, referring to how the respiratory virus is transmitted.
      Are medicines to prevent and cure the coronavirus disease within reach.
      Benjamin Cowling, an epidemiology and biostatistics professor at the University of Hong Kong, said there...
    • ( ASYMPTOMATIC, POSITIVE )  top
    • (Read more)   topSee ( ASYMPTOMATIC , CHINA , POSITIVE )
    • (Read more)   top... point of reference is the data collected from the Diamond Princess cruise ship, which was quarantined for weeks in Yokohama, Japan. All of its passengers and crew were tested, with 712 people testing positive. 334 of whom were asymptomatic, according to official Japanese figures.
      An EU report has put the proportion of asymptomatic cases in Italy at 44 per cent, but in most parts of the country people without...
    • ( ASYMPTOMATIC, COUNTRIES )  top
    • (Read more)   topSee ( ASYMPTOMATIC , CHINA , COUNTRIES )
    • ( ASYMPTOMATIC, UNIVERSITY )  top
    • (Read more)   topSee ( ASYMPTOMATIC , CHINA , UNIVERSITY )
    • (Read more)   top
      Benjamin Cowling, an epidemiology and biostatistics professor at the University of Hong Kong, said there was .clear evidence that infected persons could transmit infection before symptoms appear..
      .There are many reports of transmission around one to two days before symptom onset,
    • ( ASYMPTOMATIC, UNDOCUMENTED )  top
    • (Read more)   topSee ( ASYMPTOMATIC , CHINA , UNDOCUMENTED )
    • ( ASYMPTOMATIC, PRESYMPTOMATIC )  top
    • (Read more)   topSee ( ASYMPTOMATIC , CHINA , PRESYMPTOMATIC )
    • ( ASYMPTOMATIC, INFECTION )  top
    • (Read more)   top
      A joint study by experts in China, the US, Britain and Hong Kong estimated that undocumented cases of the pneumonia, mostly with mild or even no symptoms, were the source of infection for 79 per cent of documented ones before Wuhan was locked down on January 23.
      .These undocumented infections often experience mild, limited, or no symptoms and hence go unrecognised, and, depending...
    • (Read more)   top.clear evidence that infected persons could transmit infection before symptoms appear..
      .There are many reports of transmission around one to two days before symptom onset,
    • ( ASYMPTOMATIC, HEALTH )  top
    • (Read more)   top.t just a threat to public health, they are essential to life on Earth
      21 Mar 2020
      In Hong Kong, 16 of the 138 confirmed cases as of March 14 were asymptomatic or presymptomatic, according to Ho Pak-leung, a professor with the...
    • (Read more)   top
      A better understanding of asymptomatic cases could lead to adjustments in public health policy, experts said.
      .The asymptomatic ratio.
    • ( ASYMPTOMATIC, EXPERTS )  top
    • (Read more)   top
      A joint study by experts in China, the US, Britain and Hong Kong estimated that undocumented cases of the pneumonia, mostly with mild or even no symptoms, were the source of infection for 79 per cent of documented ones before...
    • ( ASYMPTOMATIC, DISEASE_CONTROL )  top
    • (Read more)   topSee ( ASYMPTOMATIC , CHINA , DISEASE_CONTROL )
    • ( CHINA )  top
    • (Read more)   top ... South China Morning Post. That could further complicate the strategies being used by countries to contain the virus, which has infected more than 280,000 people and killed nearly 13,000 globally. More than 43,000 people in China had tested positive for Covid-19 by the end of February but had no immediate symptoms, a condition typically known as asymptomatic, according to the data
    • (Read more)   top ... rise. A growing number of studies are now questioning the WHO.s earlier statement that asymptomatic transmission was .extremely rare. A report by the WHO.s international mission after a trip to China estimated that asymptomatic infections accounted for 1 to 3 per cent of cases, according to a European Union paper. .The number of novel coronavirus (Covid-19) cases worldwide continues to grow,...
    • (Read more)   top which had carried out nearly 300,000 tests on all close contacts of its confirmed cases as of Wednesday. are the most comparable to China.s. More than 20 per cent of the asymptomatic cases reported to the Korea Centres for Disease Control and Prevention remained without symptoms until they were discharged from hospital. .Korea currently...
    • (Read more)   top ... professor with the microbiology department of the University of Hong Kong. All of these numbers point to a significantly higher ratio of asymptomatic cases than indicated by data publicly released by China so far. There were 889 asymptomatic patients among the 44,672 confirmed cases as of February 11, epidemiologists from the Chinese Centre for Disease Control and Prevention wrote in a paper published...
    • ( HONG_KONG )  top
    • (Read more)   top ... 44 per cent, but in most parts of the country people without symptoms are not tested. Viruses aren.t just a threat to public health, they are essential to life on Earth 21 Mar 2020 In Hong Kong, 16 of the 138 confirmed cases as of March 14 were asymptomatic or presymptomatic, according to Ho Pak-leung, a professor with the microbiology department of the University of Hong Kong. All of these...
    • (Read more)   top ... factor overall. However, some scientists are asking whether asymptomatic and presymptomatic transmissions have been underestimated. A joint study by experts in China, the US, Britain and Hong Kong estimated that undocumented cases of the pneumonia, mostly with mild or even no symptoms, were the source of infection for 79 per cent of documented ones before Wuhan was locked down on January 23. .These...
    • (Read more)   topthe specialists from Columbia University, the University of Hong Kong, Imperial College London, Tsinghua University, and the University of California, Davis wrote in the report. Coronavirus still stumps experts on when human carrier turns infectious 26 Feb 2020 A separate study by scientists from the...
    • (Read more)   top ... respiratory virus is transmitted. Are medicines to prevent and cure the coronavirus disease within reach. Benjamin Cowling, an epidemiology and biostatistics professor at the University of Hong Kong, said there was .clear evidence that infected persons could transmit infection before symptoms appear.. .There are many reports of transmission around one to two days before symptom onset,
    • ( UNIVERSITY )  top
    • (Read more)   top ... Earth 21 Mar 2020 In Hong Kong, 16 of the 138 confirmed cases as of March 14 were asymptomatic or presymptomatic, according to Ho Pak-leung, a professor with the microbiology department of the University of Hong Kong. All of these numbers point to a significantly higher ratio of asymptomatic cases than indicated by data publicly released by China so far
    • (Read more)   top ... unrecognised, and, depending on their contagiousness and numbers, can expose a far greater portion of the population to the virus than would otherwise occur,. the specialists from Columbia University, the University of Hong Kong, Imperial College London, Tsinghua University, and the University of California, Davis wrote in the report. Coronavirus still stumps experts on when human carrier turns infectious 26...
    • (Read more)   top ... referring to how the respiratory virus is transmitted. Are medicines to prevent and cure the coronavirus disease within reach. Benjamin Cowling, an epidemiology and biostatistics professor at the University of Hong Kong, said there was .clear evidence that infected persons could transmit infection before symptoms appear.. .There are many reports of transmission around one to two days before symptom...