Sly Saint
Senior Member (Voting Rights)
"Some experts say it's a major issue for sufferers while others say that it has been confused with other conditions – so what’s the truth?"
https://www.telegraph.co.uk/health-fitness/body/long-covid-overblown/
Even for a nation accustomed to pandemic-sized sickness numbers, the latest figures on long Covid are starkly alarming. Last week an Oxford University study suggested that more a third of people infected with coronavirus will suffer at least one persisting symptom for three months or longer, such as fatigue, pain, depression, and problems with breathing and digestion.
The researchers, in the journal PLoS One, also compared Covid-19’s power to cause lasting post-viral symptoms with another lethal virus foe – influenza. They estimate that post-viral symptoms are around 50 per cent more common following Covid-19 than after flu.
Earlier this month, investigators at University College London and Public Health England reported in a yet-to-be published study (called the CLoCk study) that one in seven children with Covid is still suffering three months later. The most common symptoms include unusual tiredness and headaches.
The latest long Covid estimates from the Office for National Statistics suggest that about 31,000 youngsters in the 11-17 age group already have the condition.
Such statistics augur widespread ill for countless thousands whose debilitating problems may persist for months or years, or perhaps never resolve.
Not everyone agrees. Sir John Bell, the regius professor of medicine at Oxford University who helped to drive the AstraZeneca vaccine’s development, has declared that the impact of long Covid is actually “overblown”.
“The incidence [of long Covid] is much, much lower than people had anticipated,” Sir John said last month. He argues that many people who think they have long Covid are actually suffering from other conditions that share “the long list” of symptoms.
Does this mean that long Covid is caused in a specific new way? The jury is still out.”
Furthermore, Dr Scott adds, months of lockdown may have left many feeling severely fatigued and depressed regardless of infection: “It would not be surprising if some people who never actually contracted the infection report long Covid type symptoms because living through 2020 was a very rough experience.”
Nevertheless, Scott says that significant numbers of people may still be facing mysterious new Covid-related post-viral sicknesses that might dog them for years
One possibility, she says, is that in some long Covid cases the virus persists in the body.
However, long Covid might instead be an autoimmune condition caused by the body’s defences continuously reacting to the now-banished infection, she adds.
This leaves medics in a quandary. If long Covid is caused by the virus persisting in the body, it might be treated with a vaccine jab. But if it’s an autoimmune condition, then giving a vaccine could worsen symptoms by further stimulating the immune system. Instead, treatment might involve immune-dampening drugs, as are given for arthritis.
Esther Crawley, professor of child health at the University of Bristol, set up a rapid-access long Covid clinic for children suffering from fatigue two months ago. She says significant numbers are showing unprecedented problems.
“A lot of the children have similar symptoms to those who’ve suffered post-viral fatigue after other infections such as flu. But at least 10 per cent have variations that we have not seen before,” she says.
“These include persistently raised temperature. Breathlessness is another new symptom. Colleagues tell me that they are seeing a lot more gastro-intestinal problems as well, and more neurological symptoms,” Professor Crawley adds.
“What we are looking at may in fact be three to five different illnesses. They all feature fatigue but are accompanied by different clusters of symptoms that indicate different underlying biologies.”
“Most of those with anxiety or depression develop it after they get sick,” she adds. “It’s thoroughly understandable that children who get sick may become depressed and anxious. We have not found any evidence that anxiety or depression predict post-infectious fatigue (such as ME or chronic-fatigue syndrome) in children or young people.”
https://www.telegraph.co.uk/health-fitness/body/long-covid-overblown/