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Articles on Delta variant

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Arriving travellers from an international flight follow signs toward COVID-19 testing at Pearson International Airport in Toronto in February. THE CANADIAN PRESS/Nathan Denette

​​COVID-19 and border restrictions: Here’s what the parties’ election platforms say about controlling the fourth wave

The federal election is taking place during a fourth wave of COVID-19, and border management remains crucial to controlling the pandemic. Here’s how each major party would manage travel restrictions.
The huge number of active coronavirus infections offers plenty of opportunity for mutations to occur and new variants to arise. Eoneren/E+ via Getty Images

Massive numbers of new COVID–19 infections, not vaccines, are the main driver of new coronavirus variants

When the coronavirus copies itself, there is a chance its RNA will mutate. But new variants must jump from one host to another, and the more infections there are, the better chance this will happen.
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South African health experts have identified a new lineage of SARS-CoV-2: what’s known so far

We are being cautious about the implications for vaccine efficacy and transmissibility while we gather more data to understand this lineage.
To reduce the spread of COVID-19 in unvaccinated children, epidemiologists rely on a layered approach of interventions including masking, ventilation, cohorting and promoting vaccination for all eligible community members. (AP Photo/Chris O'Meara, File)

Back-to-school FAQs on children’s health & COVID-19: Delta variant, preventing infection, testing and international examples

With no vaccination yet in children under 12, preventing COVID-19 spread in schools depends on fine-tuning policy interventions according to local epidemiology and vaccination rates.
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Auckland is likely to remain in strict lockdown for several more weeks to stamp out NZ’s Delta outbreak

Several superspreading events had likely infected more than 200 people before New Zealand’s Delta outbreak was detected and the country went into a strict lockdown last week.
Italians must now present a form of vaccine passport called a ‘Green Pass’ to enter many indoor establishments. Xinhua News Agency via Getty Images

Italy – once overwhelmed by COVID-19 – turns to a health pass and stricter measures to contain virus

After enduring a devastating wave of infections, deaths and lockdowns at the start of the pandemic, Italy is putting in place tougher anti-COVID measures, including a vaccine passport.

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