Global News shows that Canadian health officials are sounding the alarm over highly transmissible new Coronavirus COVID-19 variants, warning the pandemic could "resurge rapidly" and lead to a certain third wave if public health measures are lifted further.
Canada certainly has made progress in bringing down overall infections and hospitalizations. However, the imminent threat the arrival of virus variants is an important event.
The unfortunate emergence and spread is happening of new virus variants of concern. It is important to abide by stringent public health measures. It is certainly important to prevent a rapid resurgence of the epidemic in Canada.
In North America, there are 3 variants of concern that are being tracked: the U.K., the South African and the Brazilian variants. More infectious Covid-19 variants have emerged around the world, and experts are saying that countries such as the United States must adapt to a changed pandemic playing field.
No one should travel when sick. Commercial airline restrictions may also prevent you from boarding your travel plane if you're sick. However, Canadians, persons with status under the Indian Act and permanent residents who have dangerous COVID-19 symptoms are allowed to return to Canada.
If you arrive in Canada with symptoms of COVID-19, let a border official know. A Government of Canada representative will then be certainly contacted to assess your situation. They can help you get medical care.
The new coronavirus is certainly an "RNA virus": a collection of genetic material packed inside a protein shell. RNA viruses, like the flu and measles, are more prone to changes and mutations compared with DNA viruses, such as herpes, smallpox, and human papillomavirus (HPV).
The genomes of many DNA viruses are infectious and they can be synthesized, manipulated, and introduced back into cells as plasmids, with the resulting production of certain virions. However, some DNA viruses also require a set of proteins to initiate an infection.
Virus mutation rates are described in several ways, such as mutations per nucleotide synthesized, mutations per genome synthesized or mutations/nucleotide/cell infection. For some RNA viruses, these numbers translate into 1 or 2 mutations per genome replicated. Estimates may try to account for the length of the virus replication cycle, the number of certain genomes produced, or the method of genome synthesis.
The evolution rate of a virus is often described as nucleotide substitutions per nucleotide site, per year.
No comments:
Post a Comment