Tagged: testing

How a random sampling regime could help detect COVID and highlight infection hotspots - COVID-19

Guest Author Oct 15, 2021

Stephen John Haslett, Massey University and Richard Arnold, Te Herenga Waka — Victoria University of Wellington   For the detection of community transmission of COVID-19, New Zealand currently relies on contact tracing, testing of self-selected people with symptoms and those with permission to travel between different alert levels, and surveillance testing of staff at businesses permitted to … Read More

A vaccine will be a game-changer for international travel. But it’s not everything - COVID-19

Guest Author Dec 04, 2020

Adrian Esterman, University of South Australia The United Kingdom yesterday became the first country to approve the Pfizer/BioNTech COVID-19 vaccine for widespread use. Following a review by the country’s drug regulator, the UK government announced it will begin rolling out the vaccine next week. Other countries are likely to follow soon, authorising the Pfizer/BioNTech vaccine and possibly other … Read More

How to strengthen the post-isolation Covid rules - Infectious Thoughts

Siouxsie Wiles Sep 21, 2020

Over the weekend, the Ministry of Health reported a case of Covid-19 in Auckland that is not related to the current Auckland cluster. Before we start to panic, here’s how I think the case happened and how we can strengthen our current border controls. The new Covid-19 case is someone who returned to New Zealand from India on August 27. Read More

What does a robust Covid response look like for New Zealand? - Infectious Thoughts

Siouxsie Wiles Aug 23, 2020

Because we don’t have widespread community transmission of Covid-19 in New Zealand, our response managing our border and responding to any outbreaks will also help the rest of the world understand more about Covid-19. Let me explain how, and what I think a robust Covid-19 response looks like at least in the short term. Controls at the border are all … Read More

Four possible scenarios for the Australian and South Korean travellers - Infectious Thoughts

Siouxsie Wiles Aug 01, 2020

Over the last few days, reports have emerged of people travelling from New Zealand and testing positive for Covid-19 upon arrival at their destination. First in South Korea and now in Australia. What might these positive tests mean? They’re false-positives As Toby Morris and I have explained before, there are different ways to test someone for Covid-19. The main ways … Read More

Why I’m confident there is no community transmission in NZ - Infectious Thoughts

Siouxsie Wiles Jun 25, 2020

Both the leader of the opposition Todd Muller and University of Auckland Professor Des Gorman have gone on the record as saying they suspect Covid-19 is spreading in the community in New Zealand once again. Let me explain why I don’t agree with them. As best I can tell there are two reasons Muller and Gorman have jumped to the … Read More

Why are we seeing these new cases of Covid-19 in New Zealand? - Infectious Thoughts

Siouxsie Wiles Jun 23, 2020

After weeks of no new cases of Covid-19, in the last week we’ve recorded nine. That’s sounds pretty scary, but here’s why there’s no reason to panic. For weeks now, almost every day there have been over 100,000 new confirmed cases of Covid-19 around the world. On two days last week that number topped 170,000. Sadly, it looks like the … Read More

Just how widespread is Covid-19 in people with no symptoms? - Infectious Thoughts

Siouxsie Wiles Apr 22, 2020

Did you hear about the testing of the general population in Iceland for Covid-19 that found that half of the people who tested positive didn’t have any symptoms? When I heard that, the first thing I thought was: shit, there are heaps of people walking around spreading Covid-19! And they don’t even know it, aaargh! I had a similar … Read More

Testing for COVID-19 in NZ to Achieve the Elimination Goal - Public Health Expert

Public Health Expert Apr 06, 2020

Nick Wilson,1 Ayesha Verrall,1,2 Len Cook,3 Alistair Gray,3 Amanda Kvalsvig,1 Michael Baker,1 (1epidemiologists, 2infectious disease physician, 3statisticians) In this blog, we raise ideas for how New Zealand might optimise testing to both identify cases in the community as part of the COVID-19 elimination strategy, and to confirm when the virus has been completely eliminated from the country. These are … Read More

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