The prototypic member of picornaviruses was discovered in 1898 by Friedrich Loeffler and Paul Frosch, who described the pathogen of foot-and-mouth disease (FMD; also referred to as hoof-and-mouth disease) as a filterable agent, thus demonstrating the existence of animal pathogenic viruses for the...
viruses. Like the avipox viruses, vaccinia is also considered a zoonotic virus, possibly distantly related tocowpoxor buffalopox viruses (the exact origin is unknown). In contrast to the avipox viruses, however, much of the adult population today is seropositive for vaccinia due to childhood ...
with a focus on those displaying complex dsRNA patterns. These included samples from all countries except for Romania. The analysis of the sequence data allowed the identification of 58 viral genomes (Table1), of which 32 belonged to the previously described LeppyrTLV1, 18 to four new ...
Computer viruses come in various types, classified by their origin, how they spread, where they store themselves, the files they affect, and their destructive capabilities. Each type brings a unique set of characteristics and threats. Let’s dig deeper to see how different types of viruses actua...
There are many other types of hemorrhagic fever viruses, not as lethal as Ebola, but still very dangerous. These include the arena viruses, a large class of viruses that include Lassa fever, and other hemorrhagic fever viruses named for their countries of origin, such as Bolivian, Venezuelan,...
Acanthamoebaspecies are ubiquitous protozoans that live in natural habitats. They can be at the origin of a localized and painful keratitis in immunocompetent hosts. However, as opportunistic pathogens often associated with AIDS, they give rise to a systemic and eventually lethal illness in immunocomp...
The emergence of COVID-19 and the recent multi-country mpox outbreak in non-endemic countries highlights the ongoing threat of the emerging zoonotic infectious diseases. Wildlife are important microbial reservoirs and responsible for ~70% of emerging infectious diseases1. Accordingly, the spillover of...
Scientists studying a so-called giantviruscalled a Tupanvirus (named for the South American Guarani God of Thunder) found that it, unlike the viruses we encounter today, had an almost complete machinery to take care of itself. This recent discovery has refuelled the debate over the origin of...
Although Brazil is one of the most exploited countries regarding the presence of giant viruses, only two viruses of the Marseilleviridae family had been isolated in this territory to date. Brazilian marseillevirus and Golden marseillevirus presented a high genomic diversity, thus suggesting that these...
PyVs are double-stranded deoxyribonucleic acid (DNA) viruses with a small, non-enveloped icosahedral capsid that contains a circular genome. The genome comprises of three regions: control, early and late. The control region contains the origin of replication and the promoters that regulate the expr...