Long covid infection linked with risk of 'face blindness', warns new study

News Network
March 21, 2023

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New Delhi, Mar 21: Prolonged symptoms of Covid-19 may be associated with difficulty recognising faces, a little-known condition called face blindness, and navigational problems, according to a study.

Previous studies have shown that Covid-19 can cause a range of neurological problems, including the loss of smell and taste, and impairments in attention, memory, speech, and language, known as "brain fog".

The latest research, published in the journal Cortex, is the first to report prosopagnosia, or face blindness, following symptoms consistent with Covid-19.

The condition that can make people fail to recognise familiar faces, has been estimated to affect between 2 and 2.5 per cent of people in the world.

The researchers assessed the case of Annie, a 28-year-old customer service representative and part-time portrait artist in the US, who was diagnosed with Covid-19 in March 2020 and suffered a symptom relapse two months later.

"When I first met Annie, she told me that she was unable to recognise the faces of her family," said Marie-Luise Kieseler, a graduate student at Dartmouth College in the US, adding Annie now relies on voices to recognise people.

Annie also experienced navigational deficits after having Covid-19. She has had difficulty remembering where particular sections in her grocery store are and relies on Google maps and its pin function to remember where she parks her car.

“The combination of prosopagnosia and navigational deficits that Annie had is something that caught our attention because the two deficits often go hand in hand after somebody either has had brain damage or developmental deficits,” said study senior author Brad Duchaine, a professor at Dartmouth.

"That co-occurrence is probably due to the two abilities depending on neighbouring brain regions in the temporal lobe," Duchaine said in a statement.

Dr. Vinit Suri, Senior Consultant, Neurology, Indraprastha Apollo Hospitals, New Delhi noted that the exact mechanisms by which long Covid may cause face blindness are not yet fully understood, but there are several possible explanations.

"Firstly, long Covid can cause a range of neurological symptoms which may affect the brain regions responsible for face recognition, causing difficulty in processing visual information and recognising familiar faces," Suri told PTI.

"Secondly, Covid-19 can cause inflammation and damage to the blood vessels, which can lead to reduced blood flow to the brain. This can cause brain damage and cognitive impairments, including face blindness," he added.

The research team conducted a series of tests with Annie to evaluate her problems with face recognition and determine whether she also has difficulties with other perceptual or cognitive abilities.

In one test, Annie was sequentially presented with 60 images of celebrity faces and was asked to name them. Annie correctly identified 29 per cent of the 48 celebrities whom she was familiar with as compared to most people, who can correctly identify 84 per cent of familiar celebrities.

The second test was a doppelganger test. Annie was shown a celebrity's name and then presented with images of two faces: the face of a celebrity and that of someone similar, and was then asked to identify which face was the famous person.

She identified the celebrity in 69 per cent of the 58 trials, as compared to 87 per cent in the control group.

"Our results from the test with unfamiliar faces show that it wasn't just that Annie couldn’t recall the name or biographical information of a famous person that she was familiar with, but she really has trouble learning new identities," said Kieseler.

The research team also obtained self-reported data from 54 individuals who had long Covid with symptoms for 12 weeks or more, and 32 persons who had reported that they had fully recovered from Covid-19.

Most respondents with long Covid reported that their cognitive and perceptual abilities had decreased since they had Covid.

"It was not just a small concentration of really impaired cases but a broad majority of people in the long Covid group reported noticeable difficulties doing things that they were able to do before contracting Covid-19 without any problems," Kieseler said.

"Our study highlights the sorts of perceptual problems with face recognition and navigation that can be caused by Covid-19 -- it is something that people should be aware of, especially physicians and other health care professionals,” Duchaine added.

Dr. Atul Prasad, Principal Director & HOD Neurology, BLK-Max Super Speciality Hospital, New Delhi said this is the first report of long Covid causing prosopagnosia.

"The more we study the virus, the more we realise how much damage it can cause during acute infection and now after infection has settled," Prasad told PTI.

Suri noted that that not all people with long Covid will develop face blindness, and the severity and duration of symptoms can vary widely.

"Further research is needed to better understand the relationship between long Covid and face blindness and to develop effective treatments and interventions for those affected," he added. 

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News Network
November 29,2023

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Naseem, Nasir, Firoz, Irshad, Munna, Monu, Wakeel, Rashid, Ankur, Saurabh, Devendra and Jatin. These 12 ‘rat-miners’ from Jhansi in Uttar Pradesh had asked for 36 hours to dig their way to the 41 men stuck inside the Silkyara tunnel in Uttarkashi since November 12. Ultimately, they did the job within 27 hours, leading to triumph for the human spirit in the long tunnel rescue operation.

But there were other heroes too. One was the six-inch pipe that reached the labourers on November 20, bringing them the much-needed communication line and solid food, which improved their morale and did not let the spirits down. The other key factor was that two of the stuck labourers, Gabbar Singh and Shaba Ahmed, took the leadership role inside the tunnel and motivated other workers and ensured that the team-spirit and morale remained high.

Prime Minister Narendra Modi congratulated Singh and Ahmed during his 15-minute long phone-call to the 41 labourers last night and praised the duo for showing their leadership. “Some university should do a case-study on the leadership showed by you both village men. You motivated your fellow labourers,” the PM said. Singh and Ahmed told Modi how labourers kept themselves busy by hearing songs, doing Yoga and taking long walks inside the tunnel.

Prolonged effort

When the debris collapse in the Silkyara tunnel was reported at 5:30 am on November 12, the Centre had immediately swung into action. The Auger drilling machine was air-lifted to the site and drilling began to get to the labourers. Things were tough till November 20 as only a four-inch pipe was the bridge to the stuck labourers and they had to survive only on dry fruits. But on November 20, a six-inch pipe could reach the labourers in a breakthrough.

This proved to be a lifeline as a communication line could be then established by BSNL with the workers and a camera was sent to get videos of the workers. Solid food was also sent in along with medicines and phone chargers to keep the workers healthy and in high spirits. The workers could use the phone line to speak to the authorities, psychologists deputed at the tunnel as well as their families. This improved the morale of the stuck labourers, authorities said.

This softened the blow that was suffered in the rescue after the Auger machine broke down on November 17. The authorities went by expert advice and the 12 rat-hole miners were called in earlier this week from a Delhi-based firm to carry out manual digging at the site since Monday. The rat-miners had apparently asked for 36 hours to complete the job as two of them manually dug into the debris while the rest of the rat-miners took the debris out of the tunnel.

The rat-miners achieved the breakthrough within 27 hours, ahead of their own target, and finally a welded pipe was inserted last evening to pull the 41 workers out. National Disaster Response Force (NDRF) men went in to the bring the workers out of the pipe and the entire process was completed within 45 minutes after the youngest worker came out at 7:50 pm. Ultimately, the ‘whole of government’ approach from the central and state in mission mode, and the rat-hole miners did wonders.

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News Network
November 27,2023

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Kuala Lumpur, Nov 27: Malaysia will scrap entry visa requirements for citizens of India and China visiting the nation beginning Dec. 1, according to Prime Minister Anwar Ibrahim.

Chinese and Indian nationals may stay for up to 30 days visa-free, Anwar said in a speech at his People’s Justice Party’s annual congress in Putrajaya on Sunday. This would be subject to security screening, he added.

Malaysia is counting on extra tourist arrivals — and their spending — to support economic growth. Anwar last month announced plans to improve visa facilities next year to encourage the entry of tourists and investors, “especially from India and China.”

China on Friday said it would allow citizens of six countries including Malaysia to enter the country without a visa. The move takes effect from Dec. 1 and will last until Nov. 30 of next year, and will allow leisure, business and family travelers from those nations to stay in China for up to 15 days visa-free.

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News Network
November 21,2023

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A 19-year-old woman was hacked to death in broad daylight in Uttar Pradesh's Kaushambi district by two brothers, including the man accused of raping her, police said Tuesday (November 21). Police said the killers - Ashok and Pawan Nishad - had been released on bail a few days before the brutal murder.

Police said the woman - butchered with an axe on the main road as scared villagers watched helplessly - had accused Pawan Nishad of raping her three years ago, when she was a minor. Pawan (and his associates) had been harassing the woman, since then, to get her to drop the case filed against him.

Pawan's brother, Ashok Nishad, is an accused in a separate murder case and was released less than two days before the young woman's murder, police added. Pawan was out of jail by this time and the two plotted to confront the woman's family and force them to close the case, police explained.

However, the young woman refused to back down, after which the brothers ambushed and slaughtered her as she was returning from grazing her family's cattle at a nearby field, police said.

Pawan and Ashok Nishad are now on the run, police added.

"There was a dispute between two parties in the same community regarding an old rivalry and litigation... members of one party killed the girl with a sharp weapon. A police complaint was filed and the accused have been booked," Kaushambi Superintendent of Police, Brijesh Srivastava, said.

The horrific incident took place at the Dherha village. The police have sent the woman's body for a post-mortem examination and have formed teams to arrest the accused, Mr Srivastava added.

The murder has triggered a predictable political row in the BJP-ruled state. The opposition Congress' state office posted a brief video on X (formerly Twitter) showing police covering the woman's body.

"In Kaushambi, two brutes publicly killed a girl by cutting her with an axe. One criminal had come out on bail just two days ago in a murder case. The other was accused of raping the same deceased girl."

"... brutes in UP are so fearless they have no fear of law... no respect. Here, the daughters are so unsafe that if they raise their voice about their stolen honour, they may even have to lose their lives," the opposition party said in its post, ""When will this darkness of the dark city go away?"

The murder has once again focused attention on the UP government's record on preventing crimes against women. And it comes just two months after Chief Minister Yogi Adityanath declared 'Yamraj (the Hindu god of death)' would exact retribution against anyone who harassed or harmed women.

The Chief Minister's grand remark came after a teen was killed in UP's Ambedkar Nagar district.

Two men on a motorcycle pulled on her clothes as she was riding a bicycle, causing her to fall and be hit by an oncoming vehicle. Police said she died on the spot.

According to data from the National Crime Records Bureau, UP recorded over 56,000 cases of crimes against women in 2021 - the most of any state. This includes, rape, rape and murder, and acid attacks.

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