An-Najah News -  Brazil’s health authorities have announced taht  Rio de Janeiro man who was participating in the Oxford University trials of the AstraZeneca coronavirus vaccine has died of complications from Covid-19.

Brazilian media did not identify the deceased by name, saying only that he was 28 years old and either a doctor or a medical student.

It remains unknown whether the man was taking the AstraZeneca vaccine client or was part of a control group taking the placebo.

 ANVISA said in a statement that the clinical data has to be kept confidential to protect the participants and the integrity of the study.

The British-Swedish pharma multinational is conducting a stage three trial of its Covid-19 vaccine in partnership with Oxford.

An-Najah News - According to a new study from the University of California, Davis.humans are not the only species facing a potential threat from SARS-CoV-2

An international team of scientists used genomic analysis to compare the main cellular receptor for the virus in humans

The researchers used these 25 amino acid sequences of the ACE2 protein, and modeling of its predicted protein structure together with the SARS-CoV-2 spike protein, to evaluate how many of these amino acids are found in the ACE2 protein of the different species.

Joana Damas, first author for the paper and a postdoctoral research associate at UC Davis said "Animals with all 25 amino acid residues matching the human protein are predicted to be at the highest risk for contracting SARS-CoV-2.

About 40 percent of the species potentially susceptible to SARS-CoV-2 are classified as "threatened" by the International Union for Conservation of Nature.

Endangered species predicted to be at risk