Reflective English phân tích ngôn ngữ học thuật qua một tin New Scientist: “Covid-19 news: Blood clot risk higher after infection than vaccination”.
The study weighed rates of hospital admission or death from blood clots within 28 days of either a positive test or receiving the first jab. Photograph: Dinendra Haria/SOPA Images/Rex/Shutterstock
Dear learning partners and would-be bilinguals,
We are reading this article with a view to …
+ Updating knowledge of Covid-19 related matters,
+ Optimizing our range of academic vocabulary,
+ And advancing the reading skill of getting a train of thought.
Covid-19 news: Blood clot risk higher after infection than vaccination
New Scientist, August 27 2021
Study compares risk of blood clotting problems after covid-19 infection and vaccination
*American Speaker Dana Ebbett from Reflective English:
The risk of blood clotting problems is much higher after covid-19 infection than after receiving a covid-19 vaccine, according to research from the University of Oxford.
The study, published in the British Medical Journal, looked at more than 29 million people aged 16 or older who had a first dose of the Oxford/AstraZeneca or Pfizer/BioNTech vaccine in England between December 2020 and April 2021. It focused on the risks of blood clots and thrombocytopenia, a condition involving low levels of platelets – cells that help the blood clot.
Their findings suggest the risk of thrombocytopenia in someone with the coronavirus is almost nine times higher than in someone who has had one dose of the Oxford jab. They estimated that in 10 million people vaccinated with this jab, there would be 107 additional cases of thrombocytopenia in the 28 days post-vaccination, compared with 934 in vaccinated people infected with the virus.
The analysis found an association between vaccination with the Pfizer jab and an increased risk of stroke, but the risk was more than 10 times greater after infection with the virus. There were an estimated 143 extra cases of ischaemic stroke per 10 million people within 28 days of the Pfizer vaccine, compared with 1699 cases within 28 days of a positive covid-19 test.
For cerebral venous sinus thrombosis, a type of blood clot in the brain, as well as other types of blood clot, the risks were also much higher after covid-19 than after either jab.
Other coronavirus news
Around half of all people hospitalised with covid-19 still have at least one persistent symptom after one year, according to a study of 1276 patients from Wuhan, China. Around a third of participants experienced shortness of breath after one year. Fatigue and muscle weakness affected about half of participants after 6 months but fell to one in five after 12 months.
Seven destinations have been added to the UK’s green list for travel, meaning people arriving from those places will not have to quarantine. The Azores, Canada, Denmark, Finland, Liechtenstein, Lithuania, and Switzerland will be redesignated from 30 August. Thailand and Montenegro will be moved to the red list, meaning returning UK residents must quarantine in a hotel for 11 nights on arrival.
Lockdown will be relaxed in most of New Zealand from 1 September, prime minister Jacinda Ardern has announced, but stringent restrictions will remain in Auckland and Northland. The changes in most of the country mean businesses can operate for online orders and contactless services, but public venues remain closed. Nearly 350 people have been infected in the latest outbreak. “We may be seeing the beginning of a plateau of cases, but caution is still required,” Ardern said.
*Learning paraphrases, collocations, and words close in meaning in definitions:
*American Speaker Dana Ebbett from Reflective English:
+ bloodstream blockage: obstruction or jam in blood vessels
+ blood coagulation: thickening blood that causes blockage
+ blood clotting: process of blood jelling or thickening
+ the risks of blood clots: dangers or hazards of blood blockage
+ thrombocytopenia: a condition in which you have a low blood platelet count. Platelets (thrombocytes) are colorless blood cells that help blood clot. Platelets stop bleeding by clumping and forming plugs in blood vessel injuries.
+ low levels of platelets / low counts of thrombocytes
+ cases of thrombocytopenia: incidents or instances of people having blotted platelets
+ an increased risk of stroke: a sudden serious illness when a blood vessel (tube) in the brain bursts (breaks open) or is blocked, which can cause death or the loss of the ability to move or to speak clearly
+ ischaemic /ɪˈskiːmɪk/ stroke: an inadequate blood supply to an organ or part of the body, especially the heart muscles and the brain bloodstream
+ thrombosis: blockage of blood tubes, veins or vessels
+ blood clot in the brain: blood blockage in the brain
*Learning word ranges related to topics:
+ at least one persistent symptom after one year
+ hospitalized with covid-19: sent to hospital for covid-19 treatment
+ persistent symptoms: signs of disease or ailment continuing for a long time
+ shortness of breath: feeling out of breath
+ fatigue: feeling tired and weakened
+ muscle weakness: loss of muscular strength
*Learning word ranges related to topics: Relaxing and removing lockdowns
+ destinations in the green list: places you can travel to without risks of covid-19
+ a green list for travel: a list of destinations safe for travel
+ have to quarantine: need to live separately for epidemic safety
+ places redesignated from 30 August: those destinations back in the green list
+ relaxed lockdown: loosened or lenient lockdown
+ stringent / strict restrictions will remain
+ public venues remain closed: public places, such as parks and theaters, will stay shut down
+ the latest outbreak of covid-19: the most recent spike/sharp rise of covid-19 cases
+ a plateau of cases: a time when the number of cases remains the same
*Common expressions: Notice the use of bold words!
+ the Oxford/AstraZeneca
+ the Pfizer/BioNTech vaccine
+ the 28 days post-vaccination
+ within 28 days of the Pfizer vaccine
+ within 28 days of a positive covid-19 test
+ people hospitalised with covid-19
+ have at least one persistent symptom
+ experience shortness of breath
+ returning UK residents must quarantine
+ lockdown will be relaxed
+ stringent restrictions will remain
+ businesses can operate for online orders and contactless services
+ public venues remain closed
+ the beginning of a plateau of cases
+ caution is still required
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