Vaccinated people are well protected from getting sick, but could they inadvertently transmit the coronavirus?
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The COVID-19 vaccines are a smash success. But that doesn't mean they keep every vaccinated person completely free of the coronavirus.
Avian cholera is a highly contagious disease that has produced rapid population loss in Northern common eiders.
We can learn about the spread of diseases through populations by studying naturally occurring instances of herd immunity. Avian cholera in the Canadian Arctic provides a useful case study.
Nebulisers deliver life-saving medications yet they increase the risk of spreading COVID-19 in hotel quarantine.
Winter weather forces us to congregate inside but evidence suggests cold, dry air also helps spread respiratory viruses.
We’ve learned much more about the novel coronavirus over the last few months, including that most spreading events occur inddoors.
As the coronavirus pandemic continues, and the colder weather approaches, new mathematical models are needed to study changing social behaviours and indoor spaces.
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The fines for failing to wear a mask during Melbourne's lockdown have been criticised as 'punitive'. But the fact that masks are cheap or free, with huge public health benefits, makes it justifiable.
A restaurant in Bangkok created plastic partitions and moved its tables farther apart to separate guests in a normally tight space.
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It's hard to eat while wearing a face mask, and social distancing isn't easy in restaurants' normally tight quarters. An infectious disease expert offers some tips on what to look for to stay safe.
People shop at the reopening of the Farmer’s Market in Manhattan Beach, California on May 12, 2020.
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The US is slowly reopening, but the messages from governments are confusing. An expert offers guidance on many people's first priority – connecting with loved ones.
The awesome power of exponential growth explained.
As scientists frantically try to find drugs to slow COVID-19's spread, citizen science offers an opportunity for all of us to get involved.
Disinfecting an area takes time and effort. And there is only so much you can do.
AP Photo/Seth Wenig
The coronavirus, like many infectious diseases, can live and spread on inanimate objects in the world around us. An epidemiologist explains how and gives some advice on how to minimize the risk.
Places where lots of animals come into contact can help pathogens move from species to species.
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In the real world, new diseases emerge from complex environments. To learn more about how, scientists set up whole artificial ecosystems in the lab, instead of focusing on just one factor at a time.
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.
Camp beds set up for travelers returning to Germany from China, who will be isolated for two weeks to make sure they don’t have coronavirus.
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Even before people understood how germs spread disease, they tried to isolate the sick to keep them from infecting others.
Whether by biology or behavior, some people in the crowd will transmit coronavirus to more than the average number of others.
AP Photo/Kin Cheung
The novel coronavirus spreading outward from Wuhan, China, will get an assist from a subset of infected people who transmit it to many others.
Chinese cobra (
Naja atra) with hood spread.
A new coronavirus related to SARS and MERS has now traveled from China to the United States. A genetic analysis reveals that this deadly pathogen may have originated in snakes.
The rise in size of your festive bird hides a chemical concern.
Recent improvements in medical management of HIV infection are not well understood in the legal sector.
HIV diagnosis is devastating for patients and their families. But the infection is no longer a death sentence, and should not be prosecuted as such say experts.