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Articles on Public health

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Mexico City on Aug. 8, 2021: lots of masks, not so much social distancing. Luis Barron / Eyepix Group/Barcroft Media via Getty Images

Mexico, facing its third COVID-19 wave, shows the dangers of weak federal coordination

COVID-19 cases in Mexico are approaching the highest levels seen during the second wave in late January 2021, with about 22,000 new infections a day. A slow vaccine rollout is stunting progress.
International efforts should prioritise equitable access to vaccines. Immanuel A.Afolabi/Majority World/Universal Images Group via Getty Images

The impact of COVID-19 has been lower in Africa. We explore the reasons

The emergence of variants of concern with increased potential for transmission and more severe disease in the younger population could make Africa more susceptible to a severe COVID-19 epidemic.
The Aedes mosquito can transmit several viruses including dengue, yellow fever and Zika. Joao Paulo Burini/GettyImages

Three things you should know about mosquitoes

Mosquitoes are among the deadliest animals in the world. Half of the deaths attributed to them are associated with malaria. But they carry other parasites and viruses that threaten human health.

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