Epidemiology

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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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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EPIDEMIOLOGY

Deaths from breast and cervical cancer on the rise in the state of São Paulo

Numbers began to increase in 2016 after more than a decade of decline

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Health

The spread of monkeypox

Cases worldwide increased 20% in one week; Brazil is the country with the third-highest number of infections

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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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