Epidemiology

COVID-19

Brazilian networks keep a close eye on coronavirus variants

SARS-CoV-2 genomic surveillance in the country backed by funding from British government program

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Public health

Neglected viruses

Inattention to outbreaks in Africa and the end of smallpox vaccination are facilitating the spread of monkeypox, which recently arrived in Brazil

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HISTORY

Possible origin of the Black Death

Black Death may have originated in the region of Eurasia that is now Kyrgyzstan, west of China

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Health

Fewer cases of malaria during pregnancy

Cases of gestational malaria have decreased in Brazil over the last decade

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HEALTH

Mysterious childhood hepatitis

A new disease of unknown causes has already caused outbreaks in more than 20 countries, including Brazil

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COVID-19

Number of children infected with Omicron growing in the USA

Omicron variant causes surge in child infections in the US

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COVID-19

Potential COVID-19 outbreaks in China

China registered over 500,000 cases between March and April

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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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COVID-19

With fewer cases and deaths, the pandemic could be entering a new phase

Incidence of the disease appears to be becoming more predictable

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COVID-19

Omicron and children

Hospitalization of children was higher during the Omicron outbreak

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COVID-19

COVID-19 cases on the rise in China

COVID-19 cases on the rise in China

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infectology

Mosquitoes learn to avoid poison

Disease-carrying insects can learn to avoid insecticides after being exposed just once to nonlethal doses

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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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COVID-19

Cross-infection between species

Humans have transmitted SARS-CoV-2 to animals, at least two of which have passed the virus onto other people

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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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Public health

Mosquito net benefits last for decades

Mosquito net benefits last for decades

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Careers

Healthy innovation

Researcher from Minas Gerais recognized for studies on diagnosis and prevention of infectious diseases

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Careers

Medical emergency

Recent studies address the adversities faced by new healthcare professionals during the Covid-19 pandemic

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Ecology

Vaccinating primates against yellow fever

Early trials suggest human vaccines are effective in wild primate species susceptible to the yellow fever virus

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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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PANDEMIC

Death toll underestimated in India

At least 3.2 million Indians have died from COVID-19

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INTERVIEW

Lex Bouter: Towards more responsible science

A Dutch epidemiologist talks about where the debates on research integrity are headed and his expectations for the next international conference on the topic, in May

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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 impact of restrictions on movement

Lockdown delays the peak of contagion and reduces infections of the disease

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Covid-19

Vaccines generate more consistent immune response

The immune response to the novel coronavirus provided by vaccines is more consistent than that triggered by natural infection with SARS-CoV-2

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ONMC

Scientists renounce national honor

In an open letter, 21 scientists awarded this year’s National Order of Scientific Merit renounced the honor

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Retrospect

The scourge of disease during the Paraguayan War

Most soldiers who fought in the largest armed conflict in South America died of cholera and other infectious diseases, rather than in battle

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Covid-19

Confidence in vaccines

Vaccination rate in Brazil greater than in developed countries

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COVID-19

Vaccination in decline

The COVID-19 vaccination pace has been decreasing worldwide

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