As I write this, some scientists are urging us to start to wear masks again, because there is a new variant and cases of covid are rising. Covid hasn’t gone away and we know that things may take a turn for the worse again. Yet it is remarkable how most of us have put the covid epidemic out of our minds, so soon. The success of scientists who managed to work out so quickly how this totally new disease worked, and develop effective vaccines, meant that the virus had to mutate to survive. As has happened before (after the 1918 “Spanish” flu epidemic), it mutated in a way that made the infection much less dangerous, and now most of us can go back to our old way of life with little change. Until the next surge of course.
But now seems to me to be a good time to look back at the pandemic so far. As in many countries, in the UK there is an ongoing Inquiry into how the pandemic was managed, called “Every Story Matters – UK Covid-19 Inquiry”. This inquiry looks at many aspects of the coronavirus epidemic and how prepared the country was, and how the NHS and other agencies responded. However, it is not going to be a quick look at the main important points but a long exhaustive study with many aspects and discussions which could go on for years.
Just now, I would like to consider just a few salient points even if it is very early to come to any definitive conclusions.These are personal observations and recollections which may be helpful, but may eventually turn out to be not entirely accurate. We’ll see. I am not blaming any country or health system for what happened. Wrong choices are inevitable when politicians, health workers and scientists are dealing with a completely new disease. A lot of people, scientists included, thought it was similar to flu, when it turned out not to be at all. But we do need to learn lessons.
The first event to consider was the initial Chinese response. We may never know what part, if any, Chinese scientists in Wuhan had in the origin of the disease, but certainly the chaotic and sometimes entirely wrong choices they made indicate to me that they weren’t expecting it, or knew about it, at least at that time and place. They tried to deny it, castigating health workers who tried to flag up this entirely new disease, even to the extent of silencing one brave front-line doctor, who then died of covid. Then, to some extent they may have over-reacted, putting huge numbers of very elderly people through the trauma of intubation and artificial ventilation, and keeping them there for very long periods. To do this they had to build enormous new field hospitals, and train many more staff. But the survival rate for the frail elderly (over 80’s) was very low. — 3% in one study.* and the mental trauma these people had to undergo, and the effects on hospital care for everyone else and on the workers themselves were horrific. When the disease spread rapidly to Europe, doctors assumed that the Chinese were doing something right, and copied them, ventilating all very sick patients for long periods of time. In Italy, the very sophisticated health system there was soon under immense strain and nearly collapsed
During this time I remember discussing what was happening with a group of retired doctors, and we all felt that it was totally inappropriate. We were knowledgable enough about the effects and results of long term intubation on elderly people and we were all very sure that we would not want that for ourselves. We would take our chances without it.
In Britain, huge field hospitals were quickly set up to enable long term ventilation in ICU conditions. But hardly any of these beds were used for critical covid care. The problem was lack of staff. Extra hospital beds can’t be used if there aren’t available extra fully trained staff. (Who knew?, as they say.) In a pandemic, difficult choices have to be made, but It took more than a year for the doctors to realise the futility of this well-meaning attempt, and soon they had to restrict ICU ventilation to younger fitter patients who had a better chance of survival.
The “Spanish” flu epidemic after the first world war, (we had all learnt about this in medical school) did not mainly affect the elderly but instead targeted and killed mostly young healthy people – in that case often men and their families who had survived the first world war. So I, as an elderly person, at least felt grateful that Covid was not affecting young people.
The next completely new problem concerned trying to stop the spread of the disease, using Test and Trace. This is a well documented historic method of stopping the spread of any infectious disease, which worked well with diseases like Ebola, TB and flu to some extent. But nobody knew at the start of the pandemic how the virus was transmitted.
Covid turned out to be spread by aerosols, not droplets like flu. Therefore you could not get it very easily from contaminated surfaces, but it could spread round rooms in aerosols in the air extremely quickly. Also it was not realised at that time that Covid could spread to the next victim in the 24 hours after infection, during the prodromal period, and before the infected persons even knew they had the disease.
This was completely new. We were all taught that with most infections you are most contagious in the 3 to 4 days after you start to feel sick, and you remain contagious as long as you have symptoms. But with Covid it seems that people can spread the disease immediately after the virus gets into the body, during the incubation period and early prodromal period. At this time there are no symptoms because the body is only just gearing up to fight the infection, and the symptoms such as fever, pain, or inflammation come from activation of the immune system,,
So this fact, which is related to the novel way in which the virus gets in through the ACE receptor, puts a real spanner in the works. Historically in any community at risk from an infectious disease, public health workers would try to immediately isolate people with symptoms and prevent them mixing with any non-infected people. This requires a very methodical approach and when done well it works even with very infectious diseases. The initial Covid virus (SARS-CoV-2) was not extremely infectious – the “r” number of people each person infected was less than 2, while measles for instance is about 15. But if people can’t be isolated because they don’t know they have the disease then you have to do retrospective tracing and isolation – looking back on the people who were in contact with an index case for many days before they presented, and seeing where they had spread the disease. This is actually what Taiwan, which had had experience of a similar virus, Sars 1, did to great effect. On learning of the first case of SARS-CoV-2 in January 2020, the authorities immediately closed the border with China, imposed universal mask wearing, hand hygiene, introduce of digital technology incorporating big data, and quarantine of COVID-19 cases. As a result in 2020 there were 823 recorded cases with 9 deaths in Taiwan, a tiny amount compared to other countries, which shows what can be done using strict methods. Ultimately however the virus escaped even Taiwan’s efforts, as an outbreak among Taiwanese crew members of the state-owned China Airlines in late April 2021 led to a sharp surge in cases, causing a total of 4,871 COVID-19 cases in June, 2021. There were ultinatelty a total of 17,172 deaths from Covid there, still a lot lower than in many other countries.
But the half hearted contact tracing done in so many countries did not stand a chance, and in Britain where a privatised and fragmented system was used, it was very poor indeed. According to reports, too few people were getting tested, results were coming back too slowly and not enough people were sticking to the instructions to isolate. So test and trace in the UK was having a marginal impact on transmission, and infection rates were still rising exponentially.
This is why, in retrospect, I think that the initial lockdown was essential to prevent the exponential spread of covid and complete breakdown of health services for everyone. Nothing else would stop it.
After that first long lockdown though, if a well thought out and comprehensive track and trace system had been in place then it might have been possible to avoid the draconian successive lockdowns that were so damaging to children, those in poor housing and those vulnerable to violence.
There has been a lot of discussion about the fact that nursing homes were not protected at the beginning and that so many vulnerable people died there despite the best efforts of staff. But even now I can’t see a really good method of doing this. A hospital has to be able to admit those really sick people with covid who need urgent treatment. Therefore they need to discharge those patients who don’t need active care. Of course they should always test those patients and ensure they are covid negative before they are transferred to nursing homes, and this didn’t happen for many weeks. But what if they tested negative 2 hours before transfer but then became positive during the transfer process? This must have happened many times. If patients weren’t to go back to nursing homes, where were they to go? Staying in hospital with really good systems of decontamination and PPE would only lead to more pressure on beds and treatment facilities. If possible, patients could go home, but even there if they weren’t able to manage without help, they would have care staff visiting them, who could get covid and spread it to people they visited. The need to develop a rapid accurate test early on in the pandemic was paramount, and was done, but it took time. People in hospital without covid still needed to be treated at a less intensive level, and so they were transferred to other wards, but despite heroic anti-infection measures, the virus still got around.
Nosocomial infection is the name given to hospital-acquired infections, and these have been around as long as hospitals have existed. They are devastating to patients and their relatives. You go to hospital to be treated, not to catch deadly diseases. But they have always occurred and always will, unless better methods of PPE are found. In the more distant past ordinary people were only too aware that hospitals could be dangerous places, and often wouldn’t go there at all. Only in the most wealthy countries with the best precautions can the risk of infection be safely ignored.
I think that the inquiry should come to the conclusion that a better test and trace system and better PPE would have prevented the need for so many harmful lockdowns.There is no doubt that lockdowns were extremely damaging to the fabric of society, and especially to children and the young people. They damaged children’s mental health and especially their education, and this damage is continuing. However the ill effects were very much worse for the poorest. Lack of equipment, lack of space and lack of help made online learning impossible for many children in poor households.The government did not give targeted help to such areas – in fact they seemed to give targeted help to private schools instead. And the effect on the work of social services was disastrous. Social workers could not visit households which needed help. Bullies and control freaks within families got away literally with murder. As a result, many children have died at the hands of abusive parents behind locked doors, using covid as an excuse not to admit social workers.
The saddest case I read about was the child disabled by spina bifida, who, unable to go to school during lockdown, was confined to one room, unable to move from her bed and fed solely on takeaways. She became morbidly obese and eventually died from infected bedsores. Her parents, who both worked, the mother as a carer, totally neglected her, and made excuse after excuse to refuse entry to social workers and others who wanted to check on what was happening. We can have no idea what was going on in the minds of those parents, but the whole family obviously needed specialised help. It must be very hard for working parents to continue to look after a child as disabled as this for years. Undoubtedly the child should have been moved to a safe environment. But all normal checks and balances were prevented by the lockdown system, and the child got no help.The parents were both jailed for many years for the dreadful neglect and maltreatment.
One other thing, on a separate health issue, this story shows is that it is what happens if a child eats nothing but fast food, and can get no exercise. The speed of progression of her obesity where she went from 10 stone to 24 stone over the months of lockdown is mind boggling. Such fast food in this case was addictive, in that fast food was all this child had, and no doubt was the only thing that she enjoyed. But she would not have got so obese if she was eating a balanced diet. That fact is a lesson for everyone who thinks it is OK to eat a lot of junk food, and should be a lesson for the food industry which is providing such a lethal diet. But it would need government direction for that to happen,
Another big legacy of the pandemic is long covid. It may be that eventually long covid will prove to be the worst part of the pandemic worse even than the number of deaths and the effects on children and the poor. This is because of the huge number of cases, and the severity of its effects on individuals. It is estimated that up to 10% of people contracting the Delta virus developed long covid while less than 5% got it after Omicron. Vaccination also reduces the percentage of people getting long covid, so that if the virus does not mutate further there may eventually be a diminution of the number of new cases. But even so it is a huge number, at least 65 million cases world wide.
The severity of long covid varies a lot – some people have had extremely severe symptoms that have been likened to having had a stroke or a life changing accident, and which do not appear to be getting any better. Some are bed-bound and totally unable to care for themselves. Others have had less severe symptoms which nevertheless have a big effect on quality of life and ability to work. And the range of symptoms is huge, Neurological symptoms such as brain fog and poor concentration and memory can be very severe, resulting in their brains functioning at a level equivalent to being 10 years older. Long covid can lead to poor function of the autonomic system, giving rise to problems with low blood pressure and fainting; extreme fatigue, especially after exercise, and also cardiac arrhythmias, chronic liver disease, cough and shortness of breath. The worst effects were seen in the 41 to 60 year age subgroup, and in those with more severe initial covid symptoms.
To me, it seemed very like the disability caused by myalgic encephalitis, which I saw so often when I was in medical practice. Latest estimates are that around half of individuals with long COVID are estimated to meet the criteria for ME/CFS. I hope that this might spur scientists on to find out exactly what is causing such disability. People with ME used to be told it was “all in the mind”, or at the very least, strongly influenced by mental factors such a depressions and anxiety, but now iboth conditions are finally being taken very seriously.
But the cause of Long Covid is still unknown. There is a wealth of evidence that these symptoms could be caused by long term damage to various bodily systems, and can be measured by tests on blood cells and biochemical markers. It is likely that there are multiple, potentially overlapping, causes, such as persistence of the virus in some tissues, immune dysregulation and mitochondrial dysfunction. Mitochondria are power house of the cells, and supply energy to the whole body, so damage to these organelles could well cause fatigue. What the exact mechanism is and why cold or flu viruses don’t cause such long term problems, is a mystery, but it is very obvious that the prevalence of these deleterious effects is a game changer for health systems throughout the world. In many individual cases of long covid there has been no improvement for months or years, and so far there is no treatment.
So we can see that the personal and economic costs of long covid are very severe, and not many countries have really been able to come to terms with the amount of unmet medical need that exists. It is certainly true that ijn the UK, the well known reduction in participation in the labour market in the over 50’s is at least partly due to long covid, although there are other causes as well.
The current inquiry is working to answer these questions, and many others, by examining the UK’s response to and impact of the Covid-19 pandemic, and to learn lessons for the future. I look forward to reading the report in due course, and hope the next pandemic is prepared for in a more thorough and scientific manner. That said though, the next pandemic will undoubtedly be very different again and may pose questions which are just as difficult. We just have to be quicker on the uptake next time.