Immunology
COVID-19
Two vaccines prevent infection by Sars-CoV-2
Pfizer-BioNTech and Moderna vaccines are 80% effective at preventing SARS-Cov-2 infections after the first dose and 90% after the second
By Redação
COVID-19
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Superior immunity
Studies of blood and tissue samples taken before the COVID-19 pandemic may help explain why the disease is more common and more severe in adults than in children
By Redação
photolab
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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
By Redação
COVID-19
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New vaccines on the way
Butantan Institute and federal government plan to start human trials of two vaccine candidates in the coming months
By Marcos Pivetta and Ricardo Zorzetto
Covid-19
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Antibodies reduce deaths
A clinical trial led by researchers at the University of Oxford, UK, identified a second drug capable of reducing mortality among patients with severe COVID-19
By Redação
Public health
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Vaccinations have prevented 37 million deaths in 98 countries
Immunization against major diseases has had a significant impact on public health in low- and middle-income countries, helping to save 37 million lives between 2000 and 2019
By Redação
COVID-19
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Yes to the vaccine
On January 18, FAPESP started the #vacinasim (“yesvaccine”) social media campaign to reinforce public confidence in their safety and effectiveness
By Redação
COVID-19
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Immunity could be long-lasting
The immune system's ability to recognize the novel coronavirus and fight it seems to last for at least eight months
By Redação
COVID-19
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Distribution challenges
Governments need to work with pharmaceutical and logistics companies to overcome obstacles to start the SARS-CoV-2 immunization campaign
By Tiago Jokura
COVID-19
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Butantan develops serum for the novel coronavirus
The Butantan Institute has completed development of a serum to combat SARS-CoV-2
By Redação
COVID-19
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Unequal access
Even before efficacy data for the vaccine candidates was released, it was clear that there will not be enough supply to immunize the entire global population before the end of next year
By Redação
COVID-19
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Australia gives up on vaccine candidate
A vaccine being developed by the University of Queensland and biotechnology company CSL, both from Australia, is the first of more than 200 candidates to be discarded
By Redação
COVID-19
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Vaccines and sharks
A compound extracted from the livers of sharks is used in five coronavirus vaccine candidates
By Redação
COVID-19
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Nasal spray prevents infection in ferrets
A nasal spray tested on ferrets prevented absorption of SARS-CoV-2 and for a period of 24 hours, prevented them from becoming infected with the novel coronavirus when exposed to animals known to be affected by the pathogen
By Redação
COVID-19
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Preexisting antibodies against SARS-CoV-2
Antibodies against other varieties of coronavirus are in some cases capable of recognizing SARS-CoV-2 and providing some degree of protection to those who have not yet contracted the COVID-19 pathogen
By Redação
COVID-19
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Study determines Chinese vaccine is safe
CoronaVac is safe and has no serious side effects
By Redação