The School of Chinese Medicine at Hong Kong Baptist University (HKBU) found that 55% of the patients who sought medical treatment from the HKBU Chinese Medicine Telemedicine Center Against COVID-19 during the fifth wave of the COVID-19 pandemic continued to experience at least one long COVID symptom for six months to a year after diagnosed with an infection. The most common symptoms are fatigue, brain fog and cough.
The research findings have been published in a number of papers in international academic journals including the Journal of Medical Virology and the American Journal of Chinese Medicine.
HKBU established the HKBU Chinese Medicine Telemedicine Center Against COVID-19 in 2021 during the fifth wave of the COVID-19 pandemic in Hong Kong to provide free telemedical services for COVID-19 patients. Making reference to the treatment protocols and clinical experiences in Mainland China, the expert team of HKBUs School of Chinese Medicine formulated the Chinese Medicine Clinical Guidelines for COVID-19 in Hong Kong as the University’s clinical diagnosis and treatment standards for COVID-19. The Telemedicine Center follows the guidelines to provide diagnosis, treatment, and prevention services to COVID-19 patients, close contacts, and caregivers.
Coughing is the most common early symptom of infection
The HKBU research team led by Professor Bian Zhaoxiang, Director of the Clinical Division at the School of Chinese Medicine, conducted a retrospective study using patient statistics collected by the Telemedicine Center during the fifth wave of the pandemic. The team analyzed the symptoms in the first four weeks of about 13,000 patients who were infected with COVID-19 from mid-March to early May in 2022 and underwent home isolation.
The results showed that 93% of patients experienced at least one symptom. The most common symptoms during the first week of infection were cough (91%), sputum (75%), dry throat (50%) and sore throat (44%). 17% of patients still had these symptoms four weeks after infection. Although the symptoms gradually subsided over time, the prevalence of fatigue increased.
Chinese medicine accelerates viral clearance
Among this batch of patients, the research team selected 311 patients who had taken Chinese medicine for five days within 10 days after diagnosis, and another 311 patients who had not taken any Chinese medicine during the same period to evaluate the efficacy of Chinese medicine.
The results showed that patients who took Chinese medicine within 10 days after COVID-19 infection needed an average of seven days to test negative in rapid tests, and experienced an average of four symptoms, which were significantly milder compared to patients who didn’t take Chinese medicine. The average time to test negative for patients who did not take Chinese medicine was eight days, and they experienced an average of 11 symptoms. The results show that Chinese medicine is an effective treatment for COVID-19 infection.
Over half of the patients experience long COVID after six months
The research team conducted a follow-up telephone survey from November 2022 to January 2023 with 6,242 COVID-19 patients who sought medical consultation at the Telemedicine Center between December 2021 and May 2022 to understand their symptoms and risk factors after six months to a year of infection.
The study found that 55% of patients still experienced at least one long-term symptom, i.e. “long COVID” or “post-COVID syndrome.” The most common symptoms were fatigue (36%), brain fog (34%) and cough (31%). Furthermore, females, middle-aged persons, obese people, those with comorbidities such as ophthalmology or otorhinolaryngology diseases, digestive system diseases, respiratory diseases, hyperlipidemia and cardiovascular diseases, and patients with more initial symptoms were more likely to develop long COVID. However, there was no significant correlation between taking three or more doses of vaccine and the occurrence of long COVID.
Professor Bian said, “HKBU established the Telemedicine Center during the COVID-19 outbreak to provide free treatments for COVID-19 patients. We analyzed the Center’s data to deepen the medical community’s understanding of the symptoms during the early and middle stages of COVID-19 infection as well as the post-COVID syndrome. It allows the public to understand the effectiveness of Chinese medicine in treating COVID-19. The study also shows that the tele-services of Chinese medicine can be an important component of Hong Kong’s health care and disease prevention system.”
More information: Jingyuan Luo et al, Weekly symptom profiles of nonhospitalized individuals infected with SARS‐CoV‐2 during the Omicron outbreak in Hong Kong: A retrospective observational study from a telemedicine center, Journal of Medical Virology (2022). DOI: 10.1002/jmv.28447
![](https://www.nanoappsmedical.com/wp-content/uploads/2017/05/spacer.jpg)
News
The Silent Battle Within: How Your Organs Choose Between Mom and Dad’s Genes
Research reveals that selective expression of maternal or paternal X chromosomes varies by organ, driven by cellular competition. A new study published today (July 26) in Nature Genetics by the Lymphoid Development Group at the MRC [...]
Study identifies genes increasing risk of severe COVID-19
Whether or not a person becomes seriously ill with COVID-19 depends, among other things, on genetic factors. With this in mind, researchers from the University Hospital Bonn (UKB) and the University of Bonn, in [...]
Small regions of the brain can take micro-naps while the rest of the brain is awake and vice versa
Sleep and wake: They're totally distinct states of being that define the boundaries of our daily lives. For years, scientists have measured the difference between these instinctual brain processes by observing brain waves, with [...]
Redefining Consciousness: Small Regions of the Brain Can Take Micro-Naps While the Rest of the Brain Is Awake
The study broadly reveals how fast brain waves, previously overlooked, establish fundamental patterns of sleep and wakefulness. Scientists have developed a new method to analyze sleep and wake states by detecting ultra-fast neuronal activity [...]
AI Reveals Health Secrets Through Facial Temperature Mapping
Researchers have found that different facial temperatures correlate with chronic illnesses like diabetes and high blood pressure, and these can be detected using AI with thermal cameras. They highlight the potential of this technology [...]
Breakthrough in aging research: Blocking IL-11 extends lifespan and improves health in mice
In a recent study published in the journal Nature, a team of researchers used murine models and various pharmacological and genetic approaches to examine whether pro-inflammatory signaling involving interleukin (IL)-11, which activates signaling molecules such [...]
Promise for a universal influenza vaccine: Scientists validate theory using 1918 flu virus
New research led by Oregon Health & Science University reveals a promising approach to developing a universal influenza vaccine—a so-called "one and done" vaccine that confers lifetime immunity against an evolving virus. The study, [...]
New Projects Aim To Pioneer the Future of Neuroscience
One study will investigate the alterations in brain activity at the cellular level caused by psilocybin, the psychoactive substance found in “magic mushrooms.” How do neurons respond to the effects of magic mushrooms? What [...]
Decoding the Decline: Scientific Insights Into Long COVID’s Retreat
Research indicates a significant reduction in long COVID risk, largely due to vaccination and the virus’s evolution. The study analyzes data from over 441,000 veterans, showing lower rates of long COVID among vaccinated individuals compared [...]
Silicon Transformed: A Breakthrough in Laser Nanofabrication
A new method enables precise nanofabrication inside silicon using spatial light modulation and laser pulses, creating advanced nanostructures for potential use in electronics and photonics. Silicon, the cornerstone of modern electronics, photovoltaics, and photonics, [...]
Caught in the actinium: New research could help design better cancer treatments
The element actinium was first discovered at the turn of the 20th century, but even now, nearly 125 years later, researchers still don't have a good grasp on the metal's chemistry. That's because actinium [...]
Innovative Light-Controlled Drugs Could Revolutionize Neuropathic Pain Treatment
A team of researchers from the Institute for Bioengineering of Catalonia (IBEC) has developed light-activated derivatives of the anti-epileptic drug carbamazepine to treat neuropathic pain. Light can be harnessed to target drugs to specific [...]
Green Gold: Turning E-Waste Into a Treasure Trove of Rare Earth Metals
Scientists are developing a process inspired by nature that efficiently recovers europium from old fluorescent lamps. The approach could lead to the long-awaited recycling of rare earth metals. A small molecule that naturally serves [...]
Cambridge Study: AI Chatbots Have an “Empathy Gap,” and It Could Be Dangerous
A new study suggests a framework for “Child Safe AI” in response to recent incidents showing that many children perceive chatbots as quasi-human and reliable. A study has indicated that AI chatbots often exhibit [...]
Nanoparticle-based delivery system could offer treatment for diabetics with rare insulin allergy
Up to 3% of people with diabetes have an allergic reaction to insulin. A team at Forschungszentrum Jülich has now studied a method that could be used to deliver the active substance into the [...]
Nanorobot kills cancer cells in mice with hidden weapon
Researchers at Karolinska Institutet in Sweden have developed nanorobots that kill cancer cells in mice. The robot's weapon is hidden in a nanostructure and is exposed only in the tumor microenvironment, sparing healthy cells. [...]