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Sao Paulo, Nov 22 (IANS) A team of Brazilian researchers has discovered that a gene can protect people, even those aged 90 and above, from the deadly Covid disease. Two research papers found that the frequency of variants of the gene 'MUC22' was twice as high in the mild Covid-19 group as in severe patients, and higher still in resilient super-agers. This gene belongs to the "mucin" family and is associated with the production of mucus, which lubricates and protects the [...]

Sao Paulo, Nov 10 (IANS) For the first time, scientists have shown that infection by Covid virus changes the functioning of host cell RNA, providing clues as to how different variants can escape the immune system, and serve as a basis for the development of novel treatments. Researchers at Federal University of Sao Paulo (UNIFESP) in Brazil arrived at this conclusion by analyzing 13 datasets obtained during four studies of viral, human and animal cell RNA. The study, published in [...]

Sao Paulo, Aug 18 (IANS): Patients with the most severe post-Covid smell and taste disorders are likely to perform worst in cognitive tests, especially when these involve memory, finds a study strengthening the hypothesis that loss of smell could be an early sign of the impending onset of Alzheimer's disease. In the study, a group of Brazilian researchers analysed clinical data from 701 patients hospitalised for moderate or severe Covid-19. The results, reported in European Archives [...]

Sao Paulo, Feb 9 (IANS) Brazilian researchers have found that Omicron has mutations detected in previous variants and that is the reason why it is less severe among the vaccinated. Omicron emerged as a variant of concern only in November 2021, but all the mutations it contains, except one, had been described before that. Researchers at the Federal University of Sao Paulo (UNIFESP) in Brazil attribute this factor to the effectiveness of the existing vaccines against the variant, reflected [...]

Researchers from France's Pasteur Institute, the University of Sao Paulo (USP) and Oswaldo Cruz Foundation (Fiocruz) in Brazil conducted a study involving 38 Brazilian patients. The patients were followed until they tested negative twice or three times consecutively by RT-PCR. Of the 38 cases tracked, two men and a woman were atypical in the sense that the virus was continuously detected in their organism for more than 70 days, revealed the findings published in the journal Frontiers [...]

A review of the scientific literature published by Brazilian researchers shows that pregnant women infected by the novel coronavirus run a higher risk of developing pre-eclampsia, a pregnancy complication characterized by persistent high blood pressure, usually in the second half of pregnancy or shortly after delivery. The disorder can cause serious harm to mother and baby. An article with the findings of the review is published in the journal Clinical Science. The authors analyzed a [...]

Brasilia, March 3 (IANS): The coronavirus variant detected in the northern Brazilian state of Amazonas is twice as contagious and capable of re-infecting those who already had Covid-19, according to a study The Sao Paulo Research Foundation said on Tuesday that the scientific research group was coordinated by Ester Sabino, an expert on infectious diseases at the University of Sao Paulo, and Nuno Faria, a researcher at Oxford University, reports Xinhua news agency. The virus variant was [...]

Rio de Janeiro, Nov 20 (IANS) Researchers have claimed that transparent stretchable plastic (PVC) film used in packaging meat, fruit, other foods, and to protect surfaces, can inactivate the novel Coronavirus responsible for the Covid-19 outbreak worldwide. Marketed by Brazilian plastics manufacturer Alpes, the material contains silver and silica nanoparticles, a technology developed and licensed by Nanox. In tests conducted at the University of Sao Paulo's Biomedical Sciences Institute [...]

A team of researchers has for the first time discovered hybrid fungus involved in lung infections and are investigating the role of fungi in Covid-19.  Several Covid-19 patients have died owing to concomitant infection by Aspergillus. Aspergillus latus, a species of fungus previously found only in soil or plants, has been found for the first time in a hospital environment by an international group of researchers. The group sequenced its genome and discovered that it is actually a hybrid [...]