Mysterious Fog in the US , Canada and UK: A dense, eerie fog with a "burning chemical-like smell" has spooked a good part of North America and parts of the United Kingdom and Canada. With social media amplifying all concerns, this phenomenon has sparked attention across all social media platforms. However, at the heart of this mysterious fog are a conjunction of natural events, social psychology, and environmental conditions that culminated in all the conspiracy theories and public health fears. Here's a closer look at the mysterious fog, its potential causes, and the societal response it has triggered.

Fog that Feeds Fear

The first reports of this "mysterious fog" came in from Florida where a resident said that they experienced respiratory symptoms, feverish warmth, and stomach cramps after contact with the fog. Similar stories started flooding social media, and within a day or two, a sinister force seemed to sweep across the United States, Canada, and parts of the UK. From Texas to Minnesota, people reported weird odors and health issues that they thought were linked to this bizarre atmospheric event.

Some witnesses were said to see "white particles" swirling through the air; theories ranged from a chemical attack or experimental weapon to drone-related chemical dispersals and references to historical military experiments, such as the infamous 1950s "Operation Sea-Spray."

Fuel to the fire were added when videos and posts, hundreds of thousands in number, began circulating on social media sites like TikTok and X (formerly Twitter) speculating on the origin of the fog. Hashtags like #ToxicFog went trending for days. Hysteria created a self-reinforcing loop in which every post spurred further scrutiny and fear.

Scientific Explanation of the Dense Mysterious Fog

1. What is Fog?

Fog is essentially a low-lying cloud formed when the air temperature cools to its dew point, causing water vapor to condense into tiny droplets or ice crystals. Several types of fog—advection fog, radiation fog, and valley fog—can form depending on conditions such as warm, moist air moving over cooler land or when temperatures plummet rapidly under clear skies.

2. Why the Chemical Smell?

Such chemical-like smell as reported during the occurrence of fog events is sometimes attributed to air pollution. It acts like a sponge, where it absorbs these pollutants, which include sulfur dioxide and nitrogen oxides, among others, that emit from industries. This mixture, therefore, leads to a stench that could be mistaken as unnatural or even toxic.

Also Read: Health Concerns Rise As US, Canada, and UK Come Under The Blanket Of Thick, Dense, Toxic Fog

3. What are the Health Concerns?

High moisture levels from fog can significantly exacerbate symptoms related to respiration, but especially in already predisposed asthmatics and allergy patients. The connection of these symptoms with actual fever, stomach cramps, and puffy eyes is too remote. Experts assume that the irritating effects of entrapped pollutants trapped in fog tend to affect more the eyes and throat rather than the rest of the body affected by some report.

Psychological Effects of Mass Panic Caused by Social Media

Social media amplified a natural weather event into a health epidemic. It made the personal experience of individuals become a cause for fear and speculation, a domino effect.

According to psychologists, this is a concept of selective perception, wherein once people's attention is drawn to environmental anomalies, they begin to notice them. This mirrors earlier panics, such as the Seattle windshield pitting panic of 1954. Then, atomic bomb testing caused fear in many and started to have people looking at their windshields for small marks that they had not seen before. Likewise, postings on the strangeness of the fog probably increased public awareness and suspicion, with people looking to attach unrelated symptoms to the phenomenon.

The fog hysteria shares a commonality with other instances of mass panic, such as the "drone sightings" of recent years or the Cold War-era fears of biological warfare.

Also Read: Mysterious Fog Is Making Americans Sick

These events underscore how fear can cloud judgment, especially when amplified by social media and sensationalist headlines. While historical cases, such as "Operation Sea-Spray," offer concrete evidence of the existence of unethical experiments, the jump from a natural weather condition to theories of chemical attacks exemplifies a more modern trend of connecting unrelated dots, all wonderfully seeded in distrust and anxiety.

Despite the swirling rumors, meteorologists and scientists are in agreement that the mysterious fog is not as alarming as it seems. It is well known that fog traps and amplifies pollutants, especially in urban and industrial regions. Moreover, winter months are the most conducive for fog formation, so its recent prevalence is unsurprising.

On the other hand, environmentalists advise that the fog should wake everyone up to increased levels of pollution. The reported odors and health irritations could be just symptoms of far deeper systemic issues like industrial emissions and lack of control over air quality.

The authorities must be transparent in their communication to combat misinformation and allay public fears. Governments and environmental agencies must provide timely updates on weather phenomena, air quality, and health risks. Initiatives like real-time pollutant tracking and public education campaigns can help demystify natural occurrences while addressing valid environmental concerns.

The mysterious Canada fog is a compelling case study in how environmental events intersect with psychology and societal dynamics. While rooted in natural phenomena, the fog became a vessel for collective fears, amplified by modern technology and historical anxieties.

In this information era where communication occurs at an almost lightning pace, the fog becomes a metaphor that reminds everyone about scientific literacy, environmental responsibility, and an effective balance when considering public concern. Whether perceived as a marvel of nature or as a tale that serves to teach, it left a very powerful mark in people's minds.

Andhra Pradesh Health Minister Satya Kumar Yadav has announced a collaboration with the Gates Foundation to provide universal access to modern and affordable healthcare to its residents.

In alignment with Chief Minister Nara Chandrababu Naidu’s vision for ‘Healthy Andhra Pradesh', Yadav announced that the changes will make medical services more accessible and technologically advanced.

He also noted that the partnership will improve nutritional food security and public health outcomes, shift treatment planning from reactive to preventive and focus on a predictive healthcare approach. It also focuses on nutrition programs and digital medical services, moving beyond traditional treatment models.

Yadav further added that the government plans to introduce early disease detection systems, personalized health profiling, advance warning mechanisms for potential illnesses, individual health cards and expanded digital health services, including telemedicine.

The Health Minister assured residents that the State has created a high-power expert advisory group comprising of 10 international experts to review existing healthcare systems and recommend reforms, based on the Foundation's suggestion. Three sub-committees are also being formed to focus on specific areas, he added.

What Role Will AI Play In These Reforms?

“Around 100 applicants participated and, after two rounds of screening, 20 were shortlisted, he said. The shortlisted technologies are currently being tested in government hospitals under a pilot program and a final winner will be decided by the end of March.

Yadav explained that the program's focus areas included AI-based diagnostic tests, portable point-of-care testing centres, smart monitoring and wearable devices, telemedicine tools for remote areas and data integration and disease surveillance.

He said health data collected from various sources will be integrated with the RTGS “Aware” platform to enable early detection of disease outbreaks and data-driven policy formulation, which will help the state go-through with its planned reforms.

Andhra Pradesh Plans To Ban Social Media For Teenagers

Nara Lokesh, Information Technology, Electronics and Communications, Real Time Governance and Human Resources Development Minister for Andhra Pradesh, told Bloomberg at the World Economic Forum 2026 Annual Meeting in Davos, Switzerland: "As a state, we are studying Australia’s under-16 law, and yes, I believe we need to create a strong legal enactment.

READ MORE:Living in High-Rises Linked to Higher Air Pollution Exposure, IIT Delhi Study Finds

"Youngsters below a certain age should not be on such platforms, as they do not fully understand the content they are exposed to. Thus, a strong legal framework may be required."

TDP national spokesperson Deepak Reddy supported Lokesh's claim and stated: "Children below a certain age are not emotionally mature enough to comprehend the negative and harmful content that is freely available online. That is why the Andhra government is studying global best practices and examining Australia's under-16 social media law."

If implemented successfully, Andhra Pradesh would be the first Indian state to issue the ban and could pave the way for other states to consider such policies. State officials are yet to clarify when the rule will be implemented and if any fines will be attached to it.

One of the world's largest public health campaigns against polio has been launched for Pakistan, where around 400,000 World Health Organization or WHO-trained frontline workers have been mobilized to vaccinate 45 million children. This is the country's first nationwide polio campaign of 2026. This is in collaboration with Polio Eradication Initiative, these frontline workers are going door to door across cities and remote settlements, carrying oral drops that is the only protection against a virus which has no cure. Polio. It can even cause life long paralysis.

With over three decades of effort, polio cases in Pakistan reduced by 99.8 per cent, from roughly 20,000 cases in the early 1990s to 31 causes in 2025. The country along with Afghanistan, remains among the last places where wild poliovirus still circulates. This makes this campaign even more critical to global eradication of polio.

Read: Pakistan And Afghanistan Are The Only Countries Where Polio Remains An Endemic, Says WHO

Frontline Workers Reach The Remotest Of Settlements

“We climb mountains and walk through the snow for hours with great difficulty. There is also a risk of snow falling on us from the mountains. Yet we do not give up. We reach our assigned area to vaccinate all children and protect them from polio,” said Rabia, a vaccinator from Upper Chitral, quoted by the Polio Eradication Initiative.

During the February drive, Rabia trekked steep terrain to visit 146 households and vaccinate 85 children in remote areas.

In nearby Booni, another worker, Momina, described the work as both service and responsibility. “I thank Allah that I have gotten this opportunity to serve and I am trying my best to eradicate polio in my country,” she said, according to the initiative.

Zeenat, deployed in Khayaban-e-Sir Syed, spent long days navigating crowded neighbourhoods and climbing multiple floors to reach children inside apartment buildings. She covered 242 homes, administering oral vaccine drops to every eligible child.

“I am a mother too and I have also gotten my own children vaccinated for polio. Thank God, they are healthy and protected now,” she said in remarks shared by the Polio Eradication Initiative. “This disease has no cure. I want all parents in the country to vaccinate their children with polio drops so they don’t fall prey to paralysis.”

Health workers also marked children’s fingers after vaccination, a standard monitoring method to ensure no child is missed.

Two Drops, One Goal: Ending Polio

“The vaccine is very important for children in Pakistan because polio can infect children and paralyze them. This is why we go house-to-house to vaccinate them so that no child is paralyzed,” said Rawalpindi worker Neelum, as reported by the outlet.

Health authorities say the campaign reflects a simple but urgent public-health truth: eradication depends not just on vaccines, but on reaching every last child.

What Is Polio?

It is an illness caused by a virus that affects nerves in the spinal cord or brain stem. It can lead to a person being unable to move certain limbs, which can also lead to paralysis. Furthermore, it can also cause trouble breathing, and lead to death.

The polio virus is a naturally occurring virus that has been around since prehistoric times, as per the WHO. This disease can be found in humans and is spread through the faecal-oral route, which means it is transmitted when someone ingests food or water contaminated by human faeces.

Poliovirus is a small, single-stranded RNA virus that belongs to the Enterovirus subgroup of the Picornaviridae family and was first recognized as a distinct condition by English physician Michael Underwood in 1789. The virus was identified in 1909 by Austrian immunologist Karl Landsteiner.

About 5% of people with poliovirus get a mild version of the disease called abortive poliomyelitis. It has flu-like symptoms and can last for 2 to 3 days. The symptoms include:

Fever

Headache

Muscle Aches

Sore Throat

Stomachache

Loss of appetite

Nausea

Vomiting

A more severe form is the nonparalytic polio, affecting 1% of those infected which may have the symptoms such as:

Neck pain or stiffness

Aches or stiffness in arms or legs

Severe headache

The most serious form is paralytic polio, while the symptoms start with those of nonparalytic polio and can progress to more severe signs including:

Intense pain

Extreme sensitivity to touch

Tingling or pricking sensations

Muscles spasms or twitching

Muscle weakness progressing to a limp paralysis

Measles Outbreak In UK: After 34 children were infected by a "fast spreading" measles outbreak in several north London schools, in Enfield, focus has been shifted on vaccination drive. A local doctor who was reported by the BBC informed that all children who contracted the illness were not fully immunized. This has brought back the attention on vaccination. Children across England are increasingly at risk of measles as immunization coverage drops, prompting MPs and health experts to demand urgent reform of how vaccines are delivered.

Read: North London Measles Outbreak: 34 Cases Confirmed In Unvaccinated Children From Enfield

Measles Outbreak In UK: Falling Uptake Sparks Calls Of Vaccination System Overhaul

According to The Guardian, concerns intensified after vaccination rates in some areas fell to levels comparable with lower-income countries. Public health specialists now believe further outbreaks similar to the recent north London cluster are inevitable because fewer than 60% of five-year-olds in some locations have received both recommended doses of the MMR vaccine.

In Enfield, where 60 children recently contracted measles and 15 required hospitalization, the MMR uptake stands at 64.3%. The World Health Organization recommends 95% coverage to prevent outbreaks.

Measles Outbreak In UK: "System Is Clearly Falling"

Labor MP Ben Coleman warned the current approach relying mainly on GP surgeries and schools is not sufficient.

“The long-term decline in uptake of MMR and growing number of very worrying measles outbreaks, like the one in Enfield just now, show that that system is clearly failing,” he told The Guardian.

“Children are at risk of hospitalization and even of dying from measles… Pharmacies are somewhere families often visit and they’re being wasted as a resource. We can’t afford complacency.”

Experts are urging authorities to allow pharmacies to administer routine childhood vaccinations to improve access. Currently, GP staff typically deliver the first and second doses at 12 and 18 months, while schools host catch-up drives.

Measles Outbreak In UK: Doctors Back Pharmacies Administering Vaccines

Pediatric specialists believe widening access could help families who miss appointments.

“With appropriate training and support, enabling pharmacists to deliver MMR vaccines could be particularly helpful for families who have missed routine appointments,” Prof Steve Turner, president of the Royal College of Paediatrics and Child Health, told The Guardian.

The National Pharmacy Association also supported reform, stating that the decade-long decline shows “the current system is simply not working.”

Vaccination expert Prof Helen Bedford added that some schools, including certain faith schools, do not participate in catch-up programmes, making alternative access points essential.

Measles Outbreaks Are Likely To Recur

Scientists warn measles spreads rapidly in communities with low coverage.

Prof Andrew Pollard of the Oxford Vaccine Group said there was “a real risk of further spread both locally and in other parts of London,” telling The Guardian outbreaks may repeatedly return as unvaccinated children accumulate.

A government spokesperson urged families to vaccinate children promptly and noted a new campaign encouraging parents to ensure routine immunisations are up to date. Officials say childhood vaccines prevent roughly 5,000 deaths and 228,000 hospitalizations each year in England.