News
Scientists Identify 6 Distinct Types of COVID-19
Scientists have claimed that there are six distinct ‘types’ of Covid-19, each distinguished by a particular cluster of symptoms in patients, findings, if validated, can help physicians better diagnose and monitor those infected with the novel coronavirus.
The yet-to-be peer reviewed study, published in the medRxiv preprint platform, used a machine learning algorithm to analyse data from a subset of around 1,600 users of the Covid Symptom Study app in the UK and US with confirmed Covid-19, who had regularly logged their symptoms between March and April.
It analysed if particular symptoms appeared together, and how this was related to the progression of the disease.
According to the scientists, led by those from King’s College London in the UK, the findings have major implications for the clinical management of Covid-19 patients.
“These findings have important implications for care and monitoring of people who are most vulnerable to severe Covid-19,” said Claire Steves, a co-author of the study from King’s College London.
They said the research can also help doctors predict who is most at risk and likely to need hospital care in a second wave of coronavirus infections.
The study noted that patient symptoms can fall under one of the six following categories: ‘flu-like’ with no fever, ‘flu-like’ with fever, gastrointestinal, severe level one with fatigue, severe level two with confusion, and severe level three accompanied by abdominal and respiratory pain.
In the first category of patients who reported ‘flu-like symptoms with no fever, the scientists said the manifestations included loss of smell, muscle pains, cough, sore throat, chest pain, but no fever.
According to their analysis, those in the second category had headache, loss of smell, cough, sore throat, hoarseness, fever, and loss of appetite, and those in the gastrointestinal symptoms cluster had a combination of headache, loss of smell, loss of appetite, diarrhea, sore throat, chest pain, but no cough.
Under the ‘severe level one with fatigue’ category, the scientists said patients reported loss of smell, cough, headache, fever, hoarseness, chest pain, and fatigue, and those with the level two of severity expressed these same symptoms with the addition of loss of appetite, sore throat, confusion, and muscle pain.
In the most severe category, the study noted that patients experienced headache, loss of smell, loss of appetite, cough, fever, hoarseness, sore throat, chest pain, fatigue, confusion, muscle pain, shortness of breath, diarrhea, and abdominal pain.
According to the research, all people reporting symptoms experienced headache and loss of smell, with varying combinations of additional symptoms at various times. It said some of the manifestations, such as confusion, abdominal pain and shortness of breath, are not widely known as Covid-19 symptoms, yet are hallmarks of the most severe forms of the disease.
The scientists also analysed if people experiencing particular symptom clusters were more likely to require breathing support in the form of ventilation or additional oxygen.
They discovered that only 1.5 per cent of people with cluster one, 4.4 per cent of those with cluster two and 3.3 per cent in cluster 3 required breathing support.
For clusters four, five, and six, the researchers said these figures were 8.6, 9.9, and 19.8 per cent respectively.
Nearly half of the patients in cluster six, according to the study, ended up in hospital, compared with just 16 per cent of those in cluster one.
People with cluster four, five or six symptoms tended to be older and frailer, and were more likely to be overweight, the scientists said, adding that these patients had pre-existing conditions such as diabetes or lung disease than those in the other types.
“If you can predict who these people are at day five, you have time to give them support and early interventions such as monitoring blood oxygen and sugar levels, and ensuring they are properly hydrated — simple care that could be given at home, preventing hospitalisations and saving lives,” Steves said.
Carole Sudre from King’s College London, one of the lead scientists part of the study, said the research illustrates the importance of monitoring symptoms over time to make predictions about individual risk and outcomes more sophisticated and accurate.
“This approach is helping us to understand the unfolding story of this disease in each patient so they can get the best care,” Sudre said.
“Being able to gather big datasets through the app and apply machine learning to them is having a profound impact on our understanding of the extent and impact of Covid-19, and human health more widely,” added Sebastien Ourselin, a senior author of the study from King’s College London.
PalmPay, Nigeria’s leading digital banking platform, has announced the launch of its ₦400 million festive rewards campaign, designed to reward users with cash prizes and fully sponsored international travel experiences for everyday transactions on the PalmPay app.
The campaign will run from December 17, 2025, to January 8, 2026. The campaign is designed to reward everyday transactions with extraordinary experiences. It runs alongside PalmPay’s Purple December brand campaign, which focuses on wrapping up the company’s key brand and community initiatives for the year.
At the centre of the rewards campaign is the PalmPay World Travel Carnival, an interactive card collection experience that allows users to earn city cards by completing transactions on the app. Users are required to collect five city cards – London, New York, Dubai, Sydney, and Cape Town and combine them into a World Card, which unlocks a share of the prize pool.
The more World Cards a user creates, the larger their share of the cash rewards. Any extra uncombined cards can be swapped with friends and other PalmPay users to help complete additional World Cards.
Beyond cash rewards, the Carnival also offers Free Global Trips. In each round, the top two users with the highest number of eligible transactions (₦100 and above) and at least one World Card will win an all-expense-paid international trip.
The travel grand prize covers:
- Visa fees
- Round-trip international airfare
- 5-day, 4-night hotel accommodation
- Side attraction
- Meal expenses
- Airport pick-up and drop-off
- All transportation for scheduled tour activities during the trip
Winners will be determined through a transparent leaderboard system, with prizes credited automatically at the end of each round on December 25, December 31, and January 8.
Participation is simple:
- Complete tasks on the PalmPay app, such as Airtime, Data, Transfers, and other specific transactions listed in the app, to earn cards.
- Collect all five city cards.
- Swap cards with friends to complete your collection.
- Combine cards to form a World Card and earn cash rewards.
- Perform more transactions to climb the leaderboard for a chance at the global trip prize.
To ensure fairness, PalmPay has instituted strict rules: no cheating, bots, fake accounts, or manipulation. Any violations may lead to disqualification or account bans. Additionally, the Free Travel Prize is limited to one per user throughout the campaign.
Speaking on the launch, Femi Hanson, Head of Marketing & Communication, “This festive rewards campaign is about turning everyday banking into meaningful value for our users. With the World Travel Carnival as the headline activation, we are reinforcing PalmPay’s promise of being the smarter way to bank—where smart financial decisions unlock bigger opportunities.”
The Rural Electrification Agency (REA) and the National Bureau of Statistics (NBS) have signed a Memorandum of Understanding (MoU) to conduct a nationwide energy survey aimed at closing long-standing data gaps in Nigeria’s power sector. The initiative is expected to guide policy, attract investment, and accelerate universal electricity access.
Signed in Abuja, the agreement establishes a National Energy Survey based on the Multi-Tier Tracking Framework (MTF), a globally recognized methodology that measures electricity access not only by grid connection but also by quality, affordability, reliability, and usage of electricity and clean cooking solutions.
The survey will be implemented under the Energy Sector Management Assistance Program (ESMAP) of the World Bank. Dr. Abba Aliyu, REA Managing Director/CEO, said the partnership underscores REA’s commitment to evidence-based rural electrification planning and will generate detailed insights on electricity access and off-grid solutions nationwide.
Prince Adeyemi Adeniran, Statistician-General of the Federation/CEO of NBS, emphasized that reliable statistics are essential for effective policymaking, assuring that NBS will provide technical oversight, sampling expertise, and quality assurance to meet global standards.
The survey will assess energy access, household affordability, expenditure patterns, and the adoption of off-grid technologies such as solar home systems, mini-grids, and clean cooking solutions. REA will provide sector expertise and policy alignment, while NBS manages regulatory approvals, methodology, and technical supervision.
Funded and technically overseen by the World Bank, the exercise will run for 18 months, with the resulting data expected to improve national energy planning, programme targeting, and private sector investment, particularly in underserved and rural communities.
Officials said the collaboration reflects the Federal Government’s commitment to strengthening inter-agency coordination, enhancing energy data availability, and advancing Nigeria’s goal of universal electricity and clean cooking access.
The Stakeholders in Blockchain Technology Association of Nigeria (SiBAN), the nation’s foremost self-regulatory body for the blockchain industry, has completed its election cycle, heralding the beginning of a new executive council dedicated to scaling Nigeria’s digital economy.
The highly anticipated elections concluded recently with the emergence of a new leadership team poised to champion industry standards, foster innovation, and drive widespread adoption of blockchain technology across the country.
The newly elected executives, who will officially assume their roles in January 2026, represent a blend of legal, financial, and technical expertise critical for navigating the evolving regulatory landscape.
Leading the charge is Mela Claude-Ake, a lawyer, who has been elected the President of SiBAN to succeed the outgoing President, Obinna Iwuno, whose tenure was marked by significant achievements, including facilitating crucial reforms and forging strategic partnerships with regulators and other critical stakeholders in the digital asset industry. Mr. Iwuno will formally hand over the reins to the new council in January 2026.
Other elected to the executive council are Chimene Chinah – Vice President 1, in charge of Blockchain education and adoption; Oroke Cornelius – Vice President 2, in charge of membership, strategic partnerships, and funding; and Ayo Shonibare – Vice President 3, in charge of policy, regulation, and ethics.
Others are Ugochukwu Peters – Vice President 4 in charge of digital asset operations and capital markets, Mbene Vivian – Chief strategy officer in charge of projects and incubation, Olufunmilayo Tugbobo as Financial Secretary/Chief Financial Officer, and Chiemeka David Ohajionu as Chief Communications Officer.
The newly elected council’s structure reflects SiBAN’s commitment to addressing key pillars of the blockchain ecosystem: from grassroots education and fostering innovation through projects, to establishing robust regulatory frameworks.
In his acceptance speech, Mela Claude-Ake emphasized the vital role SiBAN plays in shaping the future of finance and technology in Nigeria.
“The trust placed in this new council is not one we take lightly. We inherit a great foundation built by the outgoing team. Our mission now is to accelerate. We stand at a critical juncture where the potential of blockchain to revolutionize every sector, from finance and governance to supply chain, is undeniable. This new council will focus relentlessly on advancing smart, collaborative regulation, democratizing blockchain education, and protecting the interests of all stakeholders to ensure that Nigeria remains a leader in the African digital economy space,” he assured.
He added that he is humbled by the opportunity to be the face of one of Nigeria’s youngest and most promising sectors — blockchain tech.
“As a tech enthusiast I am excited at the possibilities. The ecosystem needs careful nurturing by the government. My administration will be focused on building new bridges for the blockchain sector internationally and domestically, establishing trust with the public and unifying the sector. I enjoin all blockchain stakeholders in Nigeria, connected to Nigeria or of nigerian heritage to join hands together with my administration in building the industry of our dreams.”
The industry now looks forward to the handover ceremony in January 2026 and the initiatives the new SiBAN leadership will unveil to solidify the association’s role as a catalyst for innovation and a respected partner to the Nigerian government.
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