13 Mar. 2023-Assoc. Chulalongkorn University A Facebook post on the situation of COVID-19 on March 13, 2023 stated that yesterday around the world there were 50,331 additional infections, 211 additional deaths, a total of 681,528,196 people, and a total of 6,811,893 deaths, the top 5 infected. The highest were Russia, Taiwan, Mexico, Japan and France. As of yesterday, countries from Europe and Asia occupied 8 of the top 10 and 18 of the world’s top 20. The number of new infections per day around the world right now from Asia and Europe Combined, accounting for 77.07 percent of the world, while the number of deaths accounted for 72.98 percent.
Update knowledge of COVID-19 And the duration of the PCR examination showed positive results after infection with Omicron strains.
Wu Y and colleagues from Peking University A systematic review of the research and meta-analysis found that after infection, The average time to incubate the virus from upper respiratory tract secretions was about 6 days (5.16 days) (Figure 1). The median time that a positive PCR result could be detected was 11 days (10.82 days) (Figure 2), with the longest time that a positive result could be detected was 23 days.
The results of this study help us understand the nature of the Omicron strain of COVID-19 infection, which in terms of exposure is associated with the risk that an infected person will be able to infect others. This is in line with previous advice to self-isolate for seven to 10 days to reduce the risk of transmission.
As for the positive PCR test, it will be found that everyone currently uses a sensitive test kit or ATK, which has the ability to detect less positive results than PCR and requires a higher viral load than PCR to get a positive result. and vice versa Once positive, it tends to turn negative faster than PCR.
2. Vaccination to reduce the risk of serious illness and death Maltezou HC et al. from Greece. A follow-up study of about 6,500 healthcare workers between 2021 and 2022 found that getting those fully vaccinated reduced the risk of serious illness requiring hospitalization. However, medical personnel who become infected after vaccination (Breakthrough infection) usually occurred about 4 months (16.2 weeks) after the booster vaccine. The average increase is about 7% each week after the booster dose.
The research highlights the efficacy of vaccines in reducing the risk of severe illness if they become infected. However, other preventative measures are needed to reduce the risk of transmission during a global pandemic. still not calm
For Thailand, we should live with consciousness, not carelessly, always protect ourselves. Adjust the environment to have better ventilation, whether at work, study, eating, drinking, traveling, wearing masks correctly. It will greatly reduce the risk of both COVID-19 and PM2.5.
