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Asymptomatic #2019nCoV infection may be rare, and transmission from an asymptomatic person is very rare with other coronaviruses, as we have seen with MERS. Thus, transmission from asymptomatic cases is likely not a major driver of transmission bit.ly/36QhfKq
The main driver of #2019-nCoV transmission, based on currently available data, is symptomatic cases.
WHO is aware of possible transmission from infected people before they developed symptoms.

WHO Situation Report 1 February 2020 bit.ly/36QhfKq
Persons with #2019nCoV who are symptomatic will spread the virus more readily through coughing and sneezing.

WHO Situation Report 1 February 2020 bit.ly/36QhfKq
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World Health Organization (WHO)
@WHO
LIVE: Press conference on the Emergency Committee meeting on #2019nCoV pscp.tv/w/cQMn-DI2MTAy…
"Over the past few weeks, we have witnessed the emergence of a previously unknown pathogen, which has escalated into an unprecedented outbreak, and which has been met by an unprecedented response"-@DrTedros #2019nCoV
@DrTedros @WHOWPRO @WHOSEARO @pahowho @WHO_Europe @WHOEMRO @WHOAFRO "As I have said repeatedly since my return from Beijing, the 🇨🇳 government is to be congratulated for the extraordinary measures it has taken to contain the #2019nCoV outbreak, despite the severe social & economic impact those measures are having on the Chinese people"-@DrTedros
Read 29 tweets
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World Health Organization (WHO)
@WHO
To date, new #coronavirus (2019-nCoV) person-to-person transmission outside of #China has been limited.

WHO Situation Report 30 January 2020 bit.ly/2tU5h5q
@WHOWPRO @WHOSEARO @WHO_Europe @WHOEMRO @WHOAFRO @pahowho Public health efforts are targeted at limiting further transmission in countries with imported new #coronavirus (2019-nCoV) acute respiratory disease cases which depends critically on the ability to detect the pathogen

WHO Situation Report 30 January 2020 bit.ly/2tU5h5q
@WHOWPRO @WHOSEARO @WHO_Europe @WHOEMRO @WHOAFRO @pahowho WHO is proposing ‘2019-nCoV’ as an interim name of the virus.
The final decision on the official name of the virus will be made by the International Committee on Taxonomy of Viruses.

WHO Situation Report 30 January 2020 bit.ly/2tU5h5q

#coronavirus
Read 4 tweets
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World Health Organization (WHO)
@WHO
The International Health Regulations Emergency Committee on the new #coronavirus (2019-nCoV) has reconvened today.

Read more about the Emergency Committee
👉bit.ly/2RjJugm
@DrTedros @WHOWPRO @WHOSEARO @WHO_Europe @pahowho @WHOEMRO @WHOAFRO The International Health Regulations Emergency Committee on the new #coronavirus (2019-nCoV) meet again today to ascertain whether the outbreak constitutes a public health emergency of international concern, and what recommendations should be made to manage it
@DrTedros @WHOWPRO @WHOSEARO @WHO_Europe @pahowho @WHOEMRO @WHOAFRO Q: What are the International Health Regulations?
A: bit.ly/38wcV4w

#coronavirus
Read 8 tweets

Related threads

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LOrion
@LOrion
FEB 1 #coronavirus Updates THREAD 2 .. begins below at 12,000 cases. Here was #coronavirus UPDATES THREAD 1
Began here. TWEETS 1-44
FEB 1#coronavirus UPDATES Thread 2 :
SUMMARY from Case 1 to 12,000 ... 76 yo Pan Chuntao was one of millions of Chinese who mingled, traveled and carried on with daily life during the critical period from mid-DEC to mid-JAN. PUBLIC NOT WARNED
tinyurl.com/uuwz5rx @CDC @NIH
FEB 1 #coronavirus THREAD2 3: #chinaoutbreak that 13,957 has killed at 304 people in China, spread to more than 20 countries, disrupted the global economy and left 55 million people in China’s #Hubei province under #quarantine lockdown @AMSA_News TY @FirstMainDesign #maddow
Read 18 tweets
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epidemi
@Epidemino
THREAD. This story in NEJM (although lacking some detail) about a German cluster of 2019-nCoV cases raises further concerns about transmission from cases both before and after symptoms and from asymptomatic or subclinical cases nejm.org/doi/full/10.10…. #nCoV #NARD 1/
Everyone is now familiar with the R_0 (if not, see this excellent tweetorial ). The R_0 is estimated from the current spread in a naive population and is meant to show the potential for spread. It's not an intrinsic property of the virus. 2/
The R_0 is determined by the infectiousness (mostly determined by properties of the virus itself, i.e. biology), by contact rates (sociology, demography) and by duration of infectiousness (interaction between virus and our defences). 3/
Read 9 tweets
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Dr Takeshi Kasai
@takeshi_kasai
Yesterday I visited Beijing with @DrTedros and @DrMikeRyan to discuss the novel #coronavirus outbreak. We met with President Xi, the Minister of Foreign Affairs Wang Yi, and Health Minister Ma Xiaowei. who.int/news-room/deta…
@DrTedros @DrMikeRyan We received detailed briefings on the latest situation & measures being taken in 🇨🇳. I would really like to appreciate the people of China, especially health care workers caring for sick patients, and the 🇨🇳 authorities for their best efforts to control this outbreak.
@DrTedros @DrMikeRyan Making decisions during infectious disease outbreaks is complex & difficult. It requires carefully balancing interventions to control disease spread, & the potential impacts of these interventions, incl. social & eco impacts. This is especially hard in the context of uncertainty.
Read 12 tweets
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Björn Meyer
@MeyerBjoern
Since more people are paying attention to the #nCoV outbreak & probably have a lot of questions, let’s use the time and talk about ‘Mutations’. At least this kind of lazy, attention-seeking form of journalism, which does nothing but to spread panic, will be part of the past. 1/
So, we will be talking #virus mutations.
Sorry, not the turtle superhero-kinda type this time. 2/
The main take-home message for on mutations is this: a mutation is a neutral event in biology. Initially the simple occurance of a mutations is neither ‘good’ or ‘bad’.
Such attributes depend on context, if this is possible at all.
Read 30 tweets
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Cillian De Gascun
@CillianDeGascun
#Coronaviruses: an introductory thread/primer. #Coronaviruses are a family of viruses that cause respiratory & intestinal illness in birds, animals, and humans. #2019nCoV is the 7th coronavirus known to infect humans (#HCoV).
Four #HCoVs – OC43, 229E, HKU1 & NL63 – cause mild ‘common cold-like’ illness. All of us have probably been infected with one or more of these at some time. These 4 #HCoVs only occasionally cause serious illness 2/n
The other 2 #HCoVs – #SARS & #MERS – cause severe disease. #SARS emerged in 2012 & infected about 8000 people worldwide with a case fatality rate (CFR) of about 10%. The #SARS outbreak was ultimately controlled with good infection prevention & control procedures 3/n
Read 13 tweets

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