Quarantine measures on the Diamond Princess cruise ship weren't effective, suggests new data. So Australian passengers without symptoms are going into quarantine again.
The virus that causes COVID-19 seems able to spread to anyone, anywhere.
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While identifying a new disease by its place of origin seems intuitive, history shows that doing so can have serious consequences for the people that live there.
The COVID-19 outbreak began in a market at the edge of Wuhan, China.
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Poor communication and misinformation is yet another way an epidemic can cause harm. So it's important health authorities get their messaging right.
Researchers Tian Xia and Zijie Lin test a plasma prototype for preventing airborne transmission of porcine reproductive and respiratory syndrome virus at a Michigan pig farm.
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Viruses are small enough to pass through filters, including face masks. Disabling viruses with electrically charged gases could be a better way to curb airborne transmission.
To how many others will one infected person spread the infection?
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Epidemiologists want to quickly identify any emerging disease's potential to spread far and wide. Dependent on a number of factors, this R0 number helps them figure that out and plan accordingly.
Pedestrians wear protective masks as they walk in Toronto in late January 2020.
THE CANADIAN PRESS/Frank Gunn
The Trump administration has cut funding for infectious disease research and reduced high-level staffing for global health security, leaving the nation less prepared for major outbreaks.
A motorcyclist rides across a bridge in Wuhan, China, in January 2020. The city as banned most vehicle use downtown in an effort to contain the spread of the novel coronavirus.
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Wuhan, China, the epicentre of the 2019-nCoV outbreak, is now under lockdown. What does that mean for its 11 million citizens, and for the rest of the world?
Cambodian high-school students line up to sanitize their hands to avoid coronavirus in Phnom Penh, Cambodia.
AP Photo/Heng Sinith
Arne Ruckert, L’Université d’Ottawa/University of Ottawa; Hélène Carabin, Université de Montréal, and Ronald Labonte, L’Université d’Ottawa/University of Ottawa
China's coronavirus outbreak is stoking fears that it could become the next great global pandemic. As the World Health Organization declares a global emergency, it's also fanning a pandemic of fear.
Medical workers talk with a woman suspected of being ill with a coronavirus at a community health station in Wuhan, China, in January 2020.
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The novel coronavirus spreading outward from Wuhan, China, will get an assist from a subset of infected people who transmit it to many others.
Thai health officials await passengers arriving on international flights. All signs point to a global overreaction to this crisis, and therefore to an amplified economic impact.
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Ilan Noy, Te Herenga Waka — Victoria University of Wellington
The preliminary evidence suggests the Wuhan coronavirus is less deadly than SARS. But with social media, panic can now spread more rapidly and further.
Health authorities estimate each infectious person could pass the virus onto two others.
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There's no evidence you can spread the Wuhan coronavirus before showing symptoms, but one study suggests it's possible for children and young people to be infectious without ever having symptoms.
Successful vaccination against measles in childhood should provide lifetime protection.
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Measles infection can be easily managed with prompt health care and symptom management. But without care, mild symptoms can turn into life threatening secondary infections or long-term effects.
Masks are selling out in Singapore amid concerns about the Wuhan virus.
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The World Health Organization decided that the coronavirus outbreak in China is not a public health emergency of international concern. At least, not at the moment.
Passengers on a tram in China wear surgical masks to guard against viral infection.
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Four people in Australia have tested positive to the Wuhan coronavirus so far. So how does it spread, who is most at risk, and what is Australia doing to reduce transmission?