Ricardo Zorzetto

IMMUNOLOGY

Butantan’s dengue vaccine is 80% effective

The vaccine offered protection against two serotypes of the virus in the final phase of human trials

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IMMUNOLOGY

Construction begins on Brazil’s new National Vaccine Center in Belo Horizonte

The institution will function as a link between basic immunobiological research and final products

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COVID-19

Nearly 60,000 people in China died of COVID-19 in one month

After weeks of no information, the Asian giant released more plausible data in January on the total number of deaths caused by the current outbreak

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INTERVIEW

Mercedes Bustamante: Before the water runs out

Biologist from the University of Brasília warns that deforestation in the Cerrado also harms other regions

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INTERVIEW

Chi Van Dang: An optimistic view of oncology

Scientific director of the Ludwig Institute for Cancer Research talks about the challenges and perspectives of the field

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COVID-19

Strains of the Omicron variant lead to dramatic rise in COVID-19 cases at the end of 2022

Average weekly number of new infections increased 12-fold between November and mid-December, with 4.6 times as many deaths

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OBITUARY

Research as a passion and a mission

Herch Moysés Nussenzveig, a scholar of optical phenomena such as the rainbow, defender of science, and physics education enthusiast, died in November, at the age of 90

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Health

The falling cost of DNA sequencing and our increasing ability to interpret data are bringing genetic testing closer to clinical practice

DNA analysis is already being used to diagnose rare diseases and guide cancer treatment

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IMMUNOLOGY

Three Brazilian COVID-19 vaccines begin human testing

The three candidates use different technologies; two have already completed the first phase of clinical trials

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The rise and fall of Tupi

The rise and fall of Tupi

Speakers of the language may have numbered 4 to 5 million a millennium ago but began declining sharply before Europeans arrived on the continent

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Cover

Sexual violence causes psychological distress and results in inflammation that can accelerate aging

UNIFESP study characterized the effects of rape on women and girls in the city of São Paulo

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NUTRITION

Foods high in sugar, sodium, and saturated fats will have to display a warning on the label

Companies will have at least 12 months to adapt to the new labeling rules, which include changes to the nutritional information table

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ARCHAEOLOGY

Dating indicates that skeleton found in Piauí is 9,600 years old

Nicknamed Zuzu, the individual was a contemporary of the oldest human groups in South America

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NEUROSCIENCE

Study maps brain evolution over a lifetime

Collection of MRI images shows that the organ grows rapidly in the first three years of life and slowly declines during adulthood

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MEDICINE

Children with Congenital Zika Syndrome suffer developmental delays in motor, cognitive, and language skills

Neurological damage caused by the virus impairs the ability to move, learn, and talk

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BIOGEOGRAPHY

Water from the Amazon River separates Brazilian and Caribbean marine species

A sediment plume from the river penetrates thousands of kilometers into the Atlantic, home to its own fauna that differs to other regions of the ocean

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INTERVIEW

Margareth Dalcolmo: Pandemic scars

The physician-researcher discusses the difficulties faced by health professionals dealing with Covid-19, the dramatic struggles of patients she attended, and the likelihood of an increase in tuberculosis cases in the coming years

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INFECTIOUS DISEASES

A long-sought cure may be closer

Experimental treatment able to control HIV for six months after stopping antiretrovirals

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Cover

A drop in childhood vaccination

The pandemic has exacerbated a decline in immunization rates, which fell by 65% in some states in 2020

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Interview

Sergio Tufik: The sleep observer

A medical researcher who began to study the effects of sleep deprivation nearly 50 years ago eventually created one of the world's most productive sleep research teams

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Geochemistry

Witnesses to a primitive Earth

Rocks found in Minas Gerais contain evidence of pockets of oxygen from 400 million years before the gas accumulated in the planet’s atmosphere

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Genetics

The rise and fall of Tupi

Speakers of the language may have numbered 4 to 5 million a millennium ago but began declining sharply before Europeans arrived on the continent

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Endocrinology

A delicate balance

Brazilians identify new areas of the brain's hunger circuit

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Climate

Cerrado under threat

The Cerrado is getting hotter, drier, and more prone to fire

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Physiology

A vein under pressure

Following transplantation to the heart in surgeries to treat coronary artery disease, saphenous veins undergo drastic restructuring and can become clogged

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Soil science

Tracking crime

Soil sample analysis can aid investigations and help solve crimes

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Genetics

Refuge under threat

Loss of native vegetation in the Amazon, home to nearly half of the world's jaguars, is putting the species at risk

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Interview

Sérgio Pena: Under the skin

The Minas Gerais geneticist proves that, at the cellular level, Brazilians look the same

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Health

The first bonding

Instructional home visits by nurses help teen mothers bond with their babies and contribute to child development

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COVID-19

Severe illness in children

A rare syndrome linked to the novel coronavirus causes lesions in multiple organs

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