Keyword: Virology

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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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COVID-19

Another step towards a universal vaccine

Clinical trials begin for broad-spectrum vaccines designed to offer protection against multiple coronaviruses

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COVID-19

Long-term damage to the surroundings

A cellular change induced by SARS-CoV-2 may explain prolonged symptoms of the disease

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COVID-19

The efficiency of masks

Tests reveal how and to what extent different types of masks limit the airborne spread of infectious diseases

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COVID-19

The pandemic accelerates

High transmissibility of the Omicron variant reinforces the importance of vaccinating children, the last age group to be immunized

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COVID-19

The uncertainties of omicron

New SARS-CoV-2 variant is highly transmissible, but for now, there is no evidence that it causes more severe disease or more deaths

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COVID-19

The quest for a Brazilian vaccine

Researchers are testing a range of technologies, but few initiatives will receive the funding needed for costly phase 3 clinical trials

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COVID-19

Two vaccines safe for children

The CoronaVac vaccine, produced in Brazil by the Butantan Institute, is safe for children and adolescents, with no major side effects

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Covid-19

Preventing new waves without lockdowns

A group of researchers decided to study how the virus could be kept under control without the need for repeated lockdowns

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COVID-19

Study outlines COVID-19’s profile in African countries

Study outlines COVID-19's profile in African countries

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Covid-19

Delta advances

Delta variant threatening control of the COVID-19 pandemic

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Covid-19

Faster COVID-19 Test

Researchers created a portable graphene-based sensor that can detect the novel coronavirus in RNA or saliva samples

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photolab

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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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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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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