Omicron’s COVID-19 infects the cells lining the respiratory tract more than any other strain.

On January 8, 2023, the Association said. Chulalongkorn University Facebook post about the issue “COVID-19” indicates that

yesterdaycovid worldwide373,639 people were added, 802 more deaths, a total of 668,193,917 people. DiedA total of 6,710,616 people

The top 5 most infected with COVID-19 are:

  1. Japan
  2. South Korea
  3. Taiwan
  4. Hong Kong
  5. China

As of yesterday, in the number of new infections, countries from Europe and Asia occupied eight of the top 10 and 17 of the top 20 globally.

The number of new infections per day worldwide at the moment from Asia and Europe Together, it accounted for 97.05 percent of the world, while the number of deaths accounted for 94.01 percent.

Update COVID-19 subspecies of Omicron

The latest data from Github up to January 5, 2023 reflects that.subspeciesAn emerging variety that has a higher rate of outbreak expansion than the original species that had previously spread

The one being watched is inevitable. XBB.1.5, BQ.1.x, BA.2.75.x, CH.1.1 and so on Across every continent, there are outgrowths from various subspecies. Proportions vary.

In this regard, Gerstung M from Heidelberg University Germany It is estimated that XBB.1.5 despite the rate of expansion of the cases faster than others. But in general, viral fitness is as good as BQ.1.1

If it is as assessed I personally expected The global epidemic this year Probably in the form of a cup of soup species (variation soup) and so on. There are many subspecies that have different influences in each region. It depends on the proportion of the infected subspecies present in that area. Self-protection during everyday life Including the scope of vaccination and the conditions for receiving it.

Why is Omicron so contagious?

Wu CT et al from Stanford University. United States The results of the study were published in the journal Medical Sciences Cell on January 5, 2023, showing that covid-19 virus can be infected It binds to the ACE2 receptor on the cell surface by entering through the motile cilia on the mucosa of the upper respiratory tract.

Within 24 hours after infecting the cells, there is a process of stimulating the microvilli to multiply rapidly. Help spread the infection through the surface of the respiratory mucosa with secretions such as mucus so it can spread the infection to others.

The research team also proves that the species Omicron It infects airway epithelial cells more frequently than any other strain previously observed in the outbreaks, Delta and D614G.

We are therefore not surprised that Omicron has caused an explosion of infections over the past year.

Thailand’s COVID-19 situation

Again, you need to constantly protect yourself, don’t let your guard down, don’t fall for superstitious lies. which encourages to throw away the mask Whether they are adults or children Because when there is a problem The people who will face this crisis are you and your family. Not a fake news source Remember the lessons of the losses over the past two years as well as what happened. and why

wearing a mask correctly during everyday life outside the home, including working, studying and traveling will greatly reduce the risk.

protect yourself from infection Or don’t repeat, this is the best.

Trapped and unfinished, only cooling and recovery, but serious illness, death and risk of further Long COVID long term


Wu CT et al. Replication of SARS-CoV-2 in airway epithelia requires reprogramming of motile and microfilar cilia. Cell. 5 January 2023.


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