Grant Hill-Cawthorne

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The WHO has declared a state of emergency to mobilise funds for research and greater awareness. Salvatore Di Nolfi/AAP

Zika emergency status a cause for alert, not alarm

Grant Hill-Cawthorne, University of Sydney

Overnight, World Health Organisation Director-General Margaret Chan declared the outbreak of Zika virus a public health emergency. So what does this mean?
Two women walk in front of a billboard, which says “Ebola must go. Stopping Ebola is Everybody’s Business” in Monrovia, Liberia, January 15 2015. UNMEER/Emmanuel Tobey

The Ebola outbreak highlights shortcomings in disease surveillance and response – and where we can do better

Arinjay Banerjee, University of Saskatchewan; Colin Brown, King's College London, and Grant Hill-Cawthorne, University of Sydney

Along with better strategies to respond to outbreaks in human populations, we need a stronger focus on surveillance in animals to identify infectious diseases before they pose a risk to human health.
In this photo a researcher from the virology institute at the Bonn Faculty of Medicine looks at cell cultures. Wolfgang Rattay/Reuters

Explainer: what exactly is coronavirus?

Arinjay Banerjee, University of Saskatchewan and Grant Hill-Cawthorne, University of Sydney

If you’ve never heard of coronaviruses before, you may know about some of the illnesses different types of they can cause, like SARS, Middle East Respiratory Syndrome and the common cold.
Different viruses have different incubation periods so some make you ill sooner than others. MIKI Yoshihito/Flickr

Viral incubation: why do bugs hide before they strike?

Grant Hill-Cawthorne, University of Sydney and Arinjay Banerjee, University of Saskatchewan

Health workers returning to their home countries after working in Ebola-affected areas are being asked to place themselves in quarantine for 21 days. This period is important because it’s the maximum time…
The risk to the Australian community from doctors and nurses returning from Ebola-affected countries is minimal. EPA/ARIE KIEVIT

Mandatory Ebola quarantine is about politics, not public health

Grant Hill-Cawthorne, University of Sydney and Adam Kamradt-Scott, University of Sydney

Governments have a duty to protect their citizens but the plan to impose mandatory detention on health-care workers being suggested by some Australian states is excessive and unwarranted. On Monday, the…
Having health-care workers use personal protective equipment significantly reduces the risk of onward transmission. AHMED JALLANZO/EPA

Quarantine works against Ebola but over‑use risks disaster

Grant Hill-Cawthorne, University of Sydney

A man in the United States has become the first known international traveller to be infected in the West Africa Ebola epidemic and carry the virus abroad. He is thought to have been infected in Liberia…
Fears surrounding the spraying of disinfectant and quarantine measures have led to protests and riots in Sierra Leone, Liberia, and Guinea. AHMED JALLANZO/EPA

Don’t panic about Ebola’s spread, here’s what we can do instead

Grant Hill-Cawthorne, University of Sydney and Lyn Gilbert, University of Sydney

News that a 25-year-old Gold Coast man is being quarantined in hospital after returning from the Democratic Republic of Congo two days ago is no reason to panic. If anything, the incident highlights the…

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