Whether to get a second booster is nowhere near black and white. Helen Petousis-Harris and Janine Paynter explain why we can't 'boost' our way out of this grey area.
Dr Helen Petousis-Harris
Associate Professor Helen Petousis-Harris is a vaccinologist in the University of Auckland’s Faculty of Medical and Health Sciences and co-director of the Global Vaccine Data Network, which is leading research on the safety and effectiveness of Covid-19 vaccines across the world.
If you've recently had Covid, look out for shingles
Shingles can be severe and serious, and also hard to treat, particularly if not
identified very early
Some perspective on vaccine side effects
Health risks from contracting Covid-19 far outweigh the rare vaccine side effect linked to the woman who died in NZ this week, writes Helen Petousis-Harris.
'Freedom' in England a reckless decision for us all
The decision to lift almost all Covid restrictions in England grants a spell of short-term freedom there, but is likely to extend the long-term sentence for the rest of the world.
The eight most common myths about Covid vaccines
Vaccinologist Helen Petousis-Harris methodically takes apart eight of the most dangerous and untrue pieces of propaganda about vaccines circulating in NZ,
Helen Petousis-Harris: Covid and blood clots – what's the deal?
You are more likely to be hit by lightning than suffer a blood clot after a Covid vaccine, but consequences can be dire for those who do. Vaccinologist Helen Petousis-Harris explains.
Why we're not ready for a vaccine rollout
Helen Petousis-Harris looks at the potential complications of vaccinating older New Zealanders – and how we should prepare.
What to expect in the vaccine rollout
With vaccines on the way, 2021 may see the pandemic beaten back. But what do these vaccines entail? And who gets them first? Helen Petousis-Harris explains.
Vaccine trial halted – what does it mean?
Dr Helen Petousis-Harris answers some questions about why the pause button has been hit on late-stage vaccine trials, arguing it's an appropriate and safe response.
Vaccine race just not the same for children
Clinical studies for Covid-19 vaccines taking place around the globe are generally recruiting healthy adults. Children are a completely different story, writes Helen Petousis-Harris.
Reckless and unsafe: Russia’s Covid-19 vaccine
Russia claims it has a vaccine, and is recklessly and unethically moving to distribute it. Helen Petousis-Harris explains why that's so wrong.
It's not the apocalypse, but yes, you should care
When will there be a vaccine? What can we do and how do we stay up to date? Helen Petousis-Harris gives an update on the COVID-19 global health emergency.