Infectious Thoughts

How genome sequencing could crack the case of the NZ Covid comeback

Siouxsie Wiles Aug 13, 2020

The novel coronavirus mutates as it travels between people and around the world. By sequencing the genome, we can try to work out which case is linked with another. As Aotearoa confronted its first cases of Covid-19 community transmission in more than 100 days, the director general of health, Ashley Bloomfield, raised genome sequencing – something which “may help us … Read More

Don’t panic. We can do this. Together

Siouxsie Wiles Aug 12, 2020

Aotearoa surpassed 100 days without a case of community transmission of Covid-19. Last night that virus-free streak ended and we’re moving back up the alert levels.  For months now, we’ve been intercepting cases of Covid-19 at the border. But just as has happened in many other countries, somehow the sneaky bastard has got in. At a late press conference last … Read More

Victoria’s lockdown ‘an endless game of Covid-19 whack-a-mole’

Siouxsie Wiles Aug 04, 2020

Siouxsie Wiles The restrictions in place for metropolitan Melbourne now are in some ways stricter than those that were in force during New Zealand’s COVID-19 lockdown. A curfew is in place and most people have to wear masks when they leave their home – neither of which happened in New Zealand. But the state of Victoria has lost valuable … Read More

Four possible scenarios for the Australian and South Korean travellers

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

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?

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