What do you know?
It spreads very fast. As of August 4, 2021, delta variants have covered more than 130 countries. In many countries, the number of coronavirus diseases has exceeded α The variation, including the United States, is considered to be 55% to 90% easier to spread than the previous covid-19 variation. Experts believe that the infectivity of the delta is 30% to 100% higher than that of alpha.
Researchers are still not sure why the delta variant is more likely to spread than other variants. They believe that changes in the mutant protein may make it easier to enter human cells. Another early study showed that the mutation of delta variant may help it better fuse with human cells after attaching itself. If it can easily mix with your cells, it can infect more cells and overwhelm your immune system.
It seems to affect young people more often. In the UK, studies have shown that children and adults under the age of 50 are 2.5 times more likely to be infected.
Symptoms seem to be more severe and occur faster. If the patient has delta variation, he is more likely to be hospitalized. Studies have shown that its risk of hospitalization is almost twice that of alpha variation.
In China, doctors say patients with delta mutation are more serious than those they treated in the early stage of the pandemic. Their condition seems to be declining faster.
Zoikovi 2019 coronavirus disease research, an application that allows people to track symptoms, shows that covid-19 symptoms in the UK may change with the spread of delta variants.
The main symptoms reported on the application include:
Cough is becoming less and less common, and loss of smell is no longer among the top ten common symptoms. The researchers worry that people may mistake the symptoms for a bad cold, so as to avoid isolation and lead to the spread of the mutant virus.
How to protect yourself
Vaccination is your best choice. The report showed that two doses of Pfizer biontech vaccine had 79% protective effect on Delta variant infection. If infected, it seems to have a 96% effect on hospitalization.
Due to delta variation, the success rate of two doses of AstraZeneca vaccine in stopping hospitalization was 92%. No deaths were reported in the vaccinated population.
What do you know?