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Artículos sobre Vaccines

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Teachers in Durban, South Africa. African countries should focus on getting people to wear masks and take other precautions against COVID-19. Photo by Darren Stewart/Gallo Images via Getty Images

Africa has few vaccines: here’s what can still be done to minimise the impact of COVID-19

National policies must incorporate good practices derived from lessons learnt so far to strengthen their health systems. Critical policy elements include preparedness and response.
Vaccination has saved millions of lives throughout the course of history. Phynart Studio/E+ from Getty Images

Millions are rejecting one of humanity’s best weapons for saving lives: Vaccines

Vaccines have successfully curtailed viral diseases for decades. But as COVID-19 vaccination hesitancy shows, mistrust and misinformation continue to put lives at risk.
Pharmacist Barbara Violo arranges all the empty vials of the AstraZeneca COVID-19 vaccine that she has provided to customers at an independent pharmacy in Toronto. THE CANADIAN PRESS/Nathan Denette

AstraZeneca second dose: Should I get the same vaccine or choose Pfizer or Moderna?

Hundreds of thousands of Canadians got a shot of AstraZeneca’s COVID-19 vaccine for their first dose. They now have a choice for their second dose: AstraZeneca again, or Pfizer or Moderna mRNA vaccine?
A nurse treats a patient inside a COVID-19 ward of a government run hospital in Kathmandu, Nepal on May 12, 2021. (AP Photo/Niranjan Shrestha)

With COVID-19 cases surging, Nepal asks global community for urgent vaccine help

The COVID-19 cases are surging in Nepal, potentially surpassing India’s reproduction rate, but the country is out of vaccines. Global aid could help with one of the worst health crises in South Asia.
This giant effigy of the SARS-CoV-2 coronavirus is intended to be burned as part of the Holika Dahan, during which the demon Holika is led to the stake on the eve of the Holi celebrations, a popular Hindu festival. Sujit Jaiswal/AFP

RNA vaccines: what protection do they provide against Covid-19 variants?

One of the main fears regarding new SARS-CoV-2 variants is that they might be resistant to immunity granted by vaccines, including RNA vaccines.

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