Four years in, Covid is still a global emergency. When will the pandemic be over?

We’re moving towards the ‘disease control’ phase of our response to Covid, which means learning to live with the virus.

Hassan Vally, The Conversation

· Feb 04, 2023 · 11:30 pm

Herd immunity was once considered our best bet against Covid-19. Here’s why it has become irrelevant

Based on what we know about currently circulating viral variants, herd immunity via vaccination is mathematically impossible.

Hassan Vally, The Conversation

· Jun 07, 2022 · 07:30 pm

Omicron lasts longer on surfaces than other variants, so don’t give up disinfecting

Understanding the role of the different infection pathways plays a vital role in prioritising what we should be doing to prevent disease.

Hassan Vally, The Conversation

· Feb 08, 2022 · 11:30 pm

Can dogs detect Covid-19? Yes, but not after dinner

The results are promising enough to justify some serious tail wagging.

Hassan Vally, The Conversation

· Jun 07, 2021 · 07:30 pm

I understand Australia’s rationale behind limiting travellers from India, but I still feel uneasy

The country’s recent move to reduce the number of people returning from India by 30% shows the complexity of public health decision-making.

Hassan Vally, The Conversation

· Apr 24, 2021 · 07:30 pm

Covid-19: Little evidence for surface transmission – so you can stop disinfecting every object

The main way it is spread is by the air, either by larger droplets via close contact or by smaller droplets called aerosols.

Hassan Vally, The Conversation

· Feb 27, 2021 · 11:30 pm

In charts: Are stringent lockdown measures more effective in curbing Covid-19 spread?

Six countries, six charts, and one important takeaway.

Hassan Vally, The Conversation

· May 02, 2020 · 11:30 pm