Guia Covid-19

Palavra-chave: Virology

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Lethal networks

Faced with an invasion of viruses or bacteria, human immune system cells sometimes overreact in a process known as NETosis, which has been shown to be more severe when the invader is SARS-CoV-2

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COVID-19

A town turned laboratory

Epidemiological studies, such as the one led in the town of Serrana, São Paulo, should provide valuable information about the pandemic

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COVID-19

The evolution of a virus

Low vaccination rates and lack of control over SARS-CoV-2 circulation is increasing the likelihood that more transmissible and lethal variants will emerge

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COVID-19

Outbreak on ship confirms the main route of contagion

The results of computer simulations of how COVID-19 spread on the Australian cruise ship Princess Diamond have finally been published in a scientific journal.

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COVID-19

The mutation risk

New strains of SARS-Cov-2, such as the one identified in the United Kingdom in December, could make the pathogen more transmissible and virulent

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FIOCRUZ – 120 YEARS

A continuum of challenges

From the bubonic plague to Zika fever, the Oswaldo Cruz Foundation’s 120-year history has been punctuated by a succession of novel diseases and related discoveries

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COVID-19

Restaurants spread infections in the United States

A study suggests that the majority of novel coronavirus infections recorded between March and May this year occured in restaurants in metropolitan areas in the USA

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COVID-19

The mystery of reinfections

Evidence that SARS-CoV-2 can infect the same person more than once is challenging our understanding of the virus and how we combat the disease

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COVID-19

Stuttering progress

Advanced testing of COVID-19 vaccines continues at an accelerated pace, despite occasional interruptions caused by safety concerns

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COVID-19

The fatality conundrum

Difficulties identifying the exact number of people infected and killed make it hard to calculate how deadly the disease is

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Video

Why the Covid-19 vaccine is important

Never before so many vaccines have been developed at the same time against a single disease, nor so rapidly | 7'32

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Cover

The uncertainty of herd immunity

With a lack of scientific consensus on the subject, experts warn that protection measures against COVID-19 must be maintained

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Cover

Potential treatment

With no effective antiviral therapy, COVID-19 management for the time being consists of reducing inflammation and preventing blood clots

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COVID-19

Mutation makes COVID-19 less serious

A mutation that erased a stretch of DNA from two SARS-CoV-2 genes appears to make the symptoms of COVID-19 less aggressive

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Pharmacology

Lasting action against HIV

Researchers at American pharmaceutical company Gilead Sciences have published the results of clinical trials of a new long-acting antiretroviral against HIV

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INTERVIEW

Cristiana Toscano: An unprecedented global effort

According to the only Brazilian member of a WHO vaccine committee, we are experiencing unprecedented worldwide collaboration to develop a vaccine in record time

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COVER

Saving time

Brazilian research centers negotiate deals to import vaccine production technology

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Covid-19

Looking for shortcuts

International teams use eight different techniques to create 150 COVID-19 vaccine candidates in six months

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COVID-19

Platform gathers data on Brazilians with COVID-19

The COVID-19 Data Sharing/BR platform is a repository of clinical, laboratory and demographic data on people diagnosed with the infection in the country

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COVID-19

More than 100 different strains of the novel coronavirus identified in Brazil

More than 100 strains of SARS-CoV-2 arrived in Brazil, but only three spread across the country

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Cover

Predicting the course of epidemics

Mathematical modeling of infectious disease, a science perfected over the last 250 years, is helping guide the COVID-19 response through uncertainties

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Cover

Natural guests

Abundant viruses contribute to the genetic diversity of life on Earth and may have emerged four times throughout the planet's history

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Data

At least 125 COVID-19 vaccines are in development, with 10 already undergoing clinical trials

Vaccines in the clinical trials phase worldwide and in development in Brazil (as of May 27, 2020)

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Good practices

Fast error correction

Scientific papers on the novel coronavirus retracted due to misunderstandings and methodological flaws, most committed in good faith

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Interview

Carlos Guerra Schrago: The theory and practice of evolution

The discipline that seeks to reconstruct the histories of species is itself evolving, according to UFRJ biologist

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Interview

Michel Nussenzweig: Antibody hunter

Brazilian-born immunologist searches the plasma of patients who have survived COVID-19 for proteins capable of fighting the novel coronavirus

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Cover

The antivirus arsenal

The search for an effective treatment for COVID-19 includes testing drugs already used against other diseases and even plasma

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Cover

A frightening disease

Reports suggest the novel coronavirus may indirectly affect other organs as well as the lungs

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Cover

Science fights back

In just four months, 8,000 scientific articles have been published on Covid-19, more than 70 drugs tested against SARS-CoV-2, and the first vaccines trialed on humans

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Coronavirus

Virus on the attack

Transmission electron microscope images provide a detailed look at how SARS-CoV-2 attacks, infects, and replicates in a culture of Vero cells

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