- Focus on Victorian COVID mystery cases, Delta variant and aged care outbreak ahead of lockdown deadline ABC News
- Why Delta variant has authorities on high alert Herald Sun
- Coronavirus: Double-strength Delta strain to dominate The Australian
- The Delta strain isn't the only COVID-19 variant you're likely to hear about. Here's a list ABC News
- What's the Delta COVID variant found in Melbourne? Is it more infectious and does it spread more in kids? A virologist explains The Conversation AU
- View Full coverage on Google News