Renata Fontanetto

CLIMATE CHANGE

Extreme rain, preventive failures, and local geography caused disaster in the South

Water in flooded areas is draining very slowly, prolonging the impact of the catastrophe in Rio Grande do Sul

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Public health

Shorter treatment for malaria

New drug proves as effective at preventing recurrences as current medications with longer courses

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Space

Tribute to the pioneers

Two large telescopes under construction have been named for American astronomers Vera Rubin and Nancy Roman

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Cover

Brazil getting drier

Global warming makes the climate less humid, leading to emergence of the country’s first arid zone

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Immunology

Mechanism that keeps the immune response in check also aggravates malaria

The protozoan that causes the disease multiplies freely when certain immune cells are taken out of the fight

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Meteorology

Artificial intelligence could improve weather forecasting

Artificial intelligence could improve weather forecasting

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EPIDEMIOLOGY

Premature deaths

The suicide rate among indigenous people is almost three times greater than that among the general population

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Rehabilitation

Early surgery to correct opening in the roof of the mouth reduces speech problems

Treatment also made it easier for patients to pronounce their first simple syllables

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Epidemiology

Suicide rate among indigenous people almost three times higher than the general population

Suicide rate among Indigenous people is three times higher than in the general population

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COVID-19

Setbacks in coronavirus drug development

Health agencies are suspending the use of drugs that have lost efficacy against circulating variants of SARS-CoV-2

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Microbiology

Viruses that infect insects increase the ability of Aedes aegypti to transmit diseases to humans

Mosquitoes infected with both PCLV and HTV are three times more likely to carry the dengue virus

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ORNITHOLOGY

Study confirms existence of dwarf hyacinth macaws

Research also defined the growth stages of this bird from the Pantanal, which was once an endangered species

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PALEONTOLOGY

Presence of water diversified vegetation in north and northeast Brazil 115 million years ago

The formation of the South Atlantic Ocean and increased rainfall was responsible for the growth of forests and plains

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