- Bagnaia eyeing summit on home ground in 100th MotoGP
- 'Something was wrong', defendant in French mass rape tells court
- Hezbollah chief admits 'unprecedented' blow in device blasts
- Sales of US existing homes slip slightly in August
- Fear, panic haunt Lebanese after devices explode
- Labuschagne sparks Australia fightback in England ODI opener
- S.Africa's HIV research power couple says fight goes on
- Why is Israel focusing on border with Lebanon?
- Mpox vaccines administered in Rwanda, first in Africa
- US Fed rate cut is 'very positive sign' for economy: Yellen
- Unknown Mozart string trio discovered in Germany
- 'Are we five-year-olds?' F1 drivers won't mind their language
- Brazil judge orders X to reimpose block or face hefty fine
- Munich to rename stadium street after Beckenbauer
- Champions Italy to face Argentina in Davis Cup Final 8
- The winding, fitful path to weight loss drug Ozempic
- Italians defeat American Magic to reach Louis Vuitton Cup final
- Norris has 'nothing to lose' as he hunts Verstappen in Singapore
- Kyiv 'outraged' at Swiss showing of Russian war film
- French city renames Abbe Pierre square after abuse claims
- Footballer charged after huge cannabis seizure at UK airport
- Vatican recognises Medjugorje shrine, but not Virgin's messages
- Israel bombs Hezbollah strongholds in Lebanon after wave of deadly blasts
- Bank of England freezes rate after jumbo US cut
- Playing Nadal is 'kind of a nightmare', says Alcaraz
- Portugal tackles last of deadly northern forest fires
- Ton-up Ashwin lifts India to 339-6 against Bangladesh
- Departing NATO chief warns US against 'isolationism'
- Coming winter 'sternest test yet' for Ukraine energy grid
- Evacuations as tail of Storm Boris floods northeast Italy
- Lebanon's Hezbollah reeling after second wave of deadly blasts
- Taiwan recognises same-sex marriages between Chinese, Taiwanese
- Stock markets rally after jumbo US rate cut
- Gabon's ousted leader Bongo says renouncing politics for good
- Lebanon device blasts: what we know about deadly attacks
- Equity markets rally after jumbo US rate cut
- Late Harrods owner Al-Fayed accused of rape: BBC
- Hong Kong man sentenced 14 months for wearing 'seditious' T-shirt
- Lebanon's Hezbollah in disarray after second wave of deadly blasts
- Equity markets, yen rally after jumbo US rate cut
- Meta and Spotify blast EU decisions on AI
- Hasan takes three as Bangladesh rattle India in first Test
- Two killed during police operation in New Caledonia
- Flood-hit region leaders to meet in Poland to discuss EU aid
- Sri Lanka to vote in first poll since economic collapse
- Hong Kong probe finds Cathay Airbus defect could cause 'extensive' damage
- AI development cannot be left to market whim, UN experts warn
- All Blacks primed for 'hell' of a Wallabies clash
- Japan firm says no longer makes radio reportedly used in Lebanon blasts
- Zoom fatigue? Try some nature in your background: study
Covid increases risk of blood clots for up to six months: study
People who have had Covid-19 have an increased risk of developing serious blood clots for up to six months after getting infected, even in mild cases, a study said Thursday.
Previous research has indicated that Covid raises the risk of blood clots, but the new study in the BMJ medical journal shows how long the threat can linger
To find out, researchers compared data from more than a million people in Sweden's national registries who contracted Covid from February 2020 to May 2021, with a control groups of over four million who did not test positive.
They found that those with Covid had a higher risk of pulmonary embolism, a blood clot that blocks arteries in lungs, up to six months after infection.
There was also an increased danger of deep vein thrombosis -- a blood clot normally in legs -- up to three months after contracting Covid.
After adjusting for a range of factors, they found a 33-fold increase in the risk of pulmonary embolism for those who had Covid, as well as a five-fold rise for deep vein thrombosis.
People who suffered severe symptoms from Covid those with pre-existing conditions were more at risk, the study found.
But even people who had mild cases that did not need hospitalisation had a higher danger of pulmonary embolism and deep vein thrombosis.
The chance of clotting was higher during the first wave of the pandemic than later stages, which the researchers said was due to vaccine coverage and better treatments as time went on.
The researchers said their findings had "major policy implications", calling for more treatment to prevent blood clots from developing, particularly in high risk cases.
They also emphasised that their results highlighted the importance of getting vaccinated.
In a linked editorial, researchers from the University of Glasgow not involved in the study said it "reminds us of the need to remain vigilant to the complications associated with even mild SARS-CoV-2 infection".
W.Lapointe--BTB