Osler, Sidney - Coronavirus Outbreak_ All the Secrets Revealed About the Covid-19 Pandemic. A Complete Rational Guide of its Evolution, Expansion, Symptoms and First Defense. (2020)

great for people developing quick testing to actually be able to
validate cases and these subsequent genomes are very useful in
understanding simple epidemiological issues. “Adding a few
main samples will change the story dramatically, due to the
rapidly evolving nature of the disease.
With access to additional genetic sequences from more
infected people, teammates from Bedford and Nextstrain
wrote on a post on their site on Jan. 30 that the low mutation
rate of the disease is the result of spreading person-to-person
from unknown animals to humans in November or early
December 2019 since its initial jump. The team also wrote in
their Jan. 30 report: While the virus has started to catch up
mutations as it spreads among people— as this form of virus
naturally does — such mutations do not appear to be related to
changes in the actions of the virus. The new virus seems to be
less likely to kill those with confirmed cases than its corona
virus predecessor, SARS, but data are too scant for firm
conclusions.
Bedford and colleagues explain their latest data on the Covid-
19 spread and evolution around the world. The map shows the
number and location of viral sequences they study as the virus
spread out of China from cases around the world. Meanwhile,
a new analysis of the first 425 people with the virus, reported
by a research team based in China in the New England Journal
of Medicine on January 29, found that it takes about five days
for a person who is eventually diagnosed with the disease to
develop symptoms following their initial infection with the
virus.