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
May 23,2023

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Bengaluru, May 23: The tussle between Karnataka Chief Minister Siddaramaiah and his deputy D.K. Shivakumar over the power-sharing formula has come to the fore in the very first week after the formation of the government. When asked about the row, Shivakumar on Tuesday curtly asked the media not to disturb him.

"Don't disturb me," said Shivakumar as he looked disturbed and maintained a distance from media persons.

Minister M.B. Patil on Monday said that Siddaramaiah will complete the five-year tenure. "There are no talks about power-sharing and Siddaramaiah will remain the CM for the full term," he stated stirring a controversy.

When his statements triggered speculation in the political corridors, on Tuesday Patil maintained that he had not made any personal comments over the issue. "I have reiterated what senior leaders announced in the press conference," he said.

Sources explained that Shuivakumar is upset over the remarks and his media statement 'don't disturb me' was aimed at M.B. Patil.

When asked about power-sharing between Siddaramaiah and Shivakumar, Congress General Secretary K.C. Venugopal had remarked that power was being given to the people of Karnataka. The high command has not given clarity about the issue so far.

The party seniors are unhappy about the development and feel that Patil's statement at this stage was unnecessary.

There was a cold war between Patil and Shivakumar when the former was inducted in Siddaramaiah-led Cabinet in 2013 and Shivakumar was kept out. Patil is equally resourceful as Shivakumar is and is considered to be the blue-eyed boy of Siddaramaiah.

Patil and Siddaramaiah made a failed attempt to create a separate religion category for Lingayats in the 2018 Assembly elections. Shivakumar had then tendered an unconditional apology to Lingayats repeatedly, much to the chagrin of Patil.

Patil had questioned Shivakumar on this and had raised questions on his right to seek apology. Patil further attacked Shivakumar that he had destroyed Congress in south Karnataka. The Congress party has taken a toll due to his egoistic demeanor and body language. He had also called Shivakumar tainted and maintained that in the 2018 elections this could also have worked against the Congress party.

Now, in the latest episode, Shivakumar has not reacted to his statements. However, sources said that he is preparing a parallel Lingayat leadership against Patil. Various Lingayat groups have already objected to preference being given to Patil, who represents a small sub-caste, over sub castes with larger populations.

Priyank Kharge, a cabinet minister, while reacting over Patil's statement, explained that the statements on power-sharing by Patil were irrelevant. "No one knows the details of the discussion between them. It is known only to CM Siddaramaiah, DyCM D.K. Shivakumar, Karnataka in-charge Randeep Singh Surjewala and AICC General Secretary K.C. Venugopal," he said.

The legislature party meeting did not discuss power-sharing. "I don't know what information M.B. Patil has it. I can tell what I know," Kharge said.

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News Network
May 24,2023

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Bengaluru, May 24: Karnataka Chief Minister Siddaramaiah on Wednesday said Ministers in his cabinet will soon be allocated portfolios, after the opposition BJP raised the issue in the state assembly. The CM gave the assurance in the House, in response to a question raised by former Chief Minister Basavaraj Bommai of BJP, over the delay in the allocation of portfolios to the Ministers.

Siddaramaiah and state Congress President D K Shivakumar were sworn in as Chief Minister and Deputy Chief Minister respectively along with eight legislators as Ministers on May 20. Portfolios have not been allocated to the Ministers since then.

As soon as the CM introduced the Ministers of his cabinet in the Assembly, Bommai intervened and said, "Happy that the Chief Minister has introduced Ministers to the House, they have all worked as Ministers in the past. Congratulations to the Chief Minister and all the Ministers, but it would have been appropriate if the Chief Minister had introduced Ministers after allocating portfolios to them saying -- D K Shivakumar is Minister for this, G Parameshwara is Minister for this." "Why has it not happened? It should be done at the earliest, in my opinion, if it is done at the earliest it will be good," he added.

Responding to this, Siddaramaiah, while assuring that portfolios will be allocated to Ministers soon, pointed out that BJP leader B S Yediyurappa in the past had served as the lone member of the cabinet for quite some time, before inducting Ministers. "We will give them the responsibility at the earliest. How long was B S Yediyurappa alone in the cabinet as the Chief Minister? Mr Former Chief Minister (Bommai), you need not have any doubts, they (Ministers) will be given responsibility at the earliest," he said.

Reacting to this, Bommai said, "Yeddyurappa was alone sworn in then, so was alone, but in this case, the Ministers have taken the oath. You make them Minister and don't give them the responsibility, what will the people think? " To this, the CM said, "No one will think anything if you the opposition don't think otherwise it will be enough." As Bommai said, he was speaking on behalf of the Ministers, Siddaramaiah replied by saying, "thank you for your suggestion."

Siddaramaiah and Shivakumar are separately leaving for New Delhi today, where they are expected to meet the Congress high command and discuss cabinet expansion, and allocation of portfolios to existing Ministers.

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News Network
May 19,2023

Bengaluru, May 19: Congress has not invited AAP chief Arvind Kejriwal, BSP’s Mayawati, BRS’ K Chandrasekhar Rao, BJD’s Naveen Patnaik and YSR Congress’ Jaganmohan Reddy for Siddaramaiah’s swearing in on Saturday in Bengaluru where the party intends to display a show of strength of the Opposition.

West Bengal Chief Minister and Trinamool Congress supremo Mamata Banerjee will not attend the ceremony despite being invited to the ceremony in Kanteerava stadium but deputed Lok Sabha Deputy Leader Kakoli Ghosh Dastidar for the event. 

Mamata, who “conveyed her best wishes” after Siddaramaiah and other leaders personally invited her, not sending Sudip Bandhyopadhyay or Derek O’Brien is seen as a signal by the Trinamool Congress that it is not so much thrilled by the Congress victory and it does not want to give much lee-way in Opposition politics.

Congress’ decision not to invite at least five parties to the function, sources said, is part of positioning in respective states. The Congress is at loggerheads with AAP in Punjab and Delhi where state leaders are up in arms against any sort of link with the Kejriwal-led party and had vehemently opposed when central leadership leaned towards it.

Though BRS was its comrade-in-arms in Parliament, the upcoming Telangana elections and Rao’s allegiance to the regional party bloc has generated suspicion in Congress circles. The state unit is also against any signal to BRS. 

BSP’s Mayawati is another leader the Congress has not invited. BSP has so far kept itself away from any Opposition grouping in the recent past and the Congress does not consider that Mayawati is in any way inclined to join the Opposition.

YSR Congress and BJD have also scrupulously kept themselves away from the Opposition and though there are demands from a section of the Opposition, they have not given any signal.

Leaders from parties like DMK, NCP, RJD, CPI(M), CPI, Shiv Sena (UBT), JMM, National Conference and Samajwadi Party have been invited to the function. Some more parties are also on the list.

With the Congress inviting Chief Ministers like MK Stalin, Nitish Kumar, Mamata and Hemant Soren, the omission of Kerala Chief Minister Pinarayi Vijayan has raised eye-brows. Congress sources said nothing much should be read into it, as only party leaders are invited and an invite has gone to CPI(M) General Secretary Sitaram Yechury.

However, there are indications that the Congress kept the political situation in Kerala in mind during discussions while preparing the invitee list. 

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