Description
• A learn about lately posted in the Clinical Nutrition Open Science journal examined the affiliation between consumption of green tea and extreme acute respiratory syndrome coronavirus two (SARS-CoV-2) contamination in the Japanese population.
• Studies have proven that inexperienced tea can assist reduce the danger of influenza and top respiratory tract infections. Moreover, epigallocatechin gallate, which is abundantly located in inexperienced tea, has been proven to inhibit contamination and transmission of SARS-CoV-2. Also, international locations with excessive consumption of inexperienced tea have been proven to have a decrease coronavirus ailment (COVID-19) morbidity/mortality rate.
• In the current study, researchers investigated the affiliation of inexperienced tea consumption with COVID-19 contamination in a team of healthcare people in Japan. Participants of the find out about have been personnel of a Tokyo-based referral hospital. The researchers used statistics from an ongoing repeat COVID-19 serological survey in employees of the National Center for Global Health and Medicine, Japan. Participants donated venous blood, and their IgG and complete antibodies towards the SARS-CoV-2 nucleocapsid (N) protein have been measured.
• Green tea consumption used to be decided the usage of a questionnaire, whilst SARS-CoV-2 contamination was once ascertained with the assist of in-house data of antibody test- or PCR-confirmed COVID-19 cases. Participants have been requested about inexperienced tea consumption at some stage in the preceding month with six alternatives ranging from “none or ≤2 day/week” to “≥4 cups/day”. Participants had been divided into four classes based totally on the responses ranging from <1 cup to ≥4 cups a day.
• The group used a couple of logistic regression to estimate the odds ratio (OR) of SARS-CoV-2 contamination in accordance to consumption of inexperienced tea
• Results
• Out of the complete 2640 participants, 767 had been men, and 1873 have been women; their age vary was once 21-75 years. Almost 3% or seventy four individuals have been demonstrated or suspected to have been SARS-CoV-2-positive at some point of the epidemic.
• Baseline traits of members confirmed that these with greater inexperienced tea consumption had greater BMI and utilized public transportation in contrast to men and women with decrease green tea consumption. No different variations have been determined primarily based on inexperienced tea consumption.
• Nearly 40% or 1049 contributors ate up inexperienced tea daily.
• Overall, SARS-CoV-2 contamination used to be no longer drastically related with the consumption of inexperienced tea. There used to be an indication of a reduce in the odds of SARS-CoV-2 contamination related with the consumption of four or extra cups of inexperienced tea a day, with an OR of 0.51 and a 95% self-belief interval (CI) of 0.20–1.31.
• The diminished odds, although no longer statistically significant, was once found for PCR-confirmed SARS-CoV-2 contamination with a multivariable-adjusted OR of 0.36 and 95% CI of 0.08–1.58, for antibody test-suggested SARS-CoV-2 contamination with an OR of 0.72 and 95% CI: 0.21–2.44, for COVID-19 recognized earlier than vaccination with an OR 0.28 and 95% CI: 0.04–2.24, and COVID-19 identified after vaccination with an OR or 0.46 and 95% CI: 0.06–3.71.
• Conclusions
• In the current learn about carried out amongst healthcare people in Japan, the place inexperienced tea is a famous drink, there used to be no statistically enormous proof of an affiliation between inexperienced tea consumption and danger of SARS-CoV-2 infection validated by using PCR or antibody tests.
• However, men and women who bump off greater than four cups of inexperienced tea a day had a decrease odds of SARS-CoV-2 infection, even though this discovering used to be now not statistically significant. This was once in line with preceding information displaying that epigallocatechin gal late can inhibit SARS-CoV-2 contamination and transmission.
• Since the decrease odds of contamination in human beings with excessive green tea consumption used to be found throughout many exceptional consequences (PCR or antibody take a look at confirmed) and timings (infection pre- or post-vaccination), this suggests that inexperienced tea consumption ought to forestall each symptomatic or asymptomatic infection, regardless of vaccination status. According to the authors, the decrease odds of contamination amongst persons with excessive inexperienced tea consumption require in addition investigation.
• Studies have additionally proven that inexperienced tea inhibits contamination by way of each wild-type SARS-CoV-2 and its more recent variants. The consequences of the existing learn about may additionally additionally be relevant to the Delta variant, as the post-vaccination find out about length corresponded to the Delta variant-led epidemic.
