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.

India's drug regulator, the Central Drugs Standard Control Organization (CDSCO), has threatened pharmaceutical firms with action for promoting GLP-1 weight-loss drugs among the general public.

Glucagon-Like Peptide-1 (GLP-1) receptor agonists are a class of medicines that help lower blood sugar, support weight loss, reduce the risk of heart and kidney complications, and can even lower the risk of early death in people with type 2 diabetes.

In an official circular, the CDSCO warned drug makers from indulging in "direct or indirect advertising" for obesity and metabolic disorders.

The regulatory body also cautioned pharma companies against campaigns using influencers, noting that any violation "could attract regulatory action".

Advertisements, which "function as a surrogate advertisement for prescription-only drugs, shall be viewed seriously and may be treated as irrational or misleading marketing practice", read the letter signed by the Drug Controller General of India (DCGI) Rajeev Raghuvanshi.

The order comes as the CDSCO noted that drugmakers have been engaging in surrogate promotional activities, under the garb of disease awareness campaigns, and digital media outreach.

What The CDSCO Mandated

• Weight-loss drugs, specifically GLP-1 medications, must only be sold with a prescription from a registered medical practitioner.

• There should be no ads, whether direct or indirect, in print, electronic, digital, social media, or any other public platform intended, directly or indirectly, to promote the product to the general public.

• No GLP-1 drugs must exaggerate for therapeutic efficacy; suggest for assured or guaranteed weight loss outcome; and induce demand for pharmacological therapy

• awareness campaigns
• influencer engagement
• corporate campaigns

Rush For Generic Weight Loss Drugs

The government's advisory comes patent for semaglutide -- an active ingredient in diabetes and anti-obesity drugs, specifically Wegovy and Ozempic -- expires on March 20.

This will allow Indian pharma companies to launch cheaper generic versions, significantly increasing affordability and access for millions battling Type 2 diabetes and obesity.

Major Indian drugmakers gearing up to launch their generic semglutide injection in the country in March include Sun Pharmaceutical Industries, Zydus Lifesciences, Alkem Laboratories, Dr. Reddy’s Laboratories, Torrent Pharmaceuticals, and MSN Laboratories.

Obesity A Chronic Metabolic Condition

The CDSCO stressed the importance of "lifestyle modification measures (diet, exercise, behavioural interventions)" in treating obesity.

"Obesity is a chronic metabolic condition requiring comprehensive management, including lifestyle interventions," the regulator said.

"Pharmaceutical therapy, where indicated, must not be projected in a manner that undermines public health initiatives promoting diet control, physical activity, and preventive healthcare," it added.

WHO Guidelines On GLP-1 drugs

Amid increasing prevalence of GLP-1 drugs, the World Health Organisation (WHO), late last year, acknowledged its role in treating obesity.

However, it warned that medications like GLP-1 alone will not solve the problem affecting more than one billion people worldwide.

The global health body also issued conditional recommendations for using these therapies as part of a comprehensive approach that includes healthy diets, regular physical activity, and support from health professionals.

The UK Health Security Agency (HSA) and the Medicines and Healthcare products Regulatory Agency (MHRA) have warned people against using non-sterile alcohol-free wipes in their homes and first aid kits, over their link to a fatal bacterial infection, which has also led to death in the country.

After testing almost 200 products, the officials identified Burkholderia stabilis -- a type of bacteria found naturally in the environment, including in soil and water -- in four brands of skin cleansing wipes intended for first aid.

These brands of non-sterile alcohol-free wipes have been contaminated and have caused serious infection with the B. stabilis. These include:

• ValueAid Alcohol Free Cleansing Wipes
• Microsafe Moist Wipe Alcohol Free
• Steroplast Sterowipe Alcohol Free Cleansing Wipes
• Reliwipe Alcohol Free Cleansing Wipes

While B. stabilis rarely causes infection in healthy individuals, it can be dangerous to people with a weakened immune system, cystic fibrosis, or malignancy, the authorities said. Further, patients using intravenous lines at home are also at higher risk of developing infection.

The MHRA had, in 2025, also issued a warning against the four products.

“There have been 59 confirmed cases of Burkholderia stabilis associated with some non-sterile alcohol-free wipe products -- identified in an outbreak in the United Kingdom from January 2018 to 3 February 2026,” the joint statement said.

“A small number of cases continue to be detected. These have included some serious infections which have required hospital treatment, and one death has been attributed to Burkholderia stabilis infection,” it added.

The health agencies also stressed that only wipes marked as “sterile” should be used on broken skin and only used to clean intravenous lines if instructed by a patient’s medical team.

“We are reminding the public not to use, and to dispose of, certain non-sterile alcohol-free wipes, which have been linked to an outbreak of Burkholderia stabilis,” said James Elston, consultant in epidemiology and public health at UKHSA.

“Those who still have any of the affected products should stop using them immediately and dispose of them in standard household waste,” the UKHSA added.

A recent report by Eurosurveillance, early this month, also confirmed 59 cases of B. stabilis associated with contaminated non-sterile alcohol-free wipe products in the UK as of February.

Also read: What Kind Of Wipes Should You Use To Clean Wounds? Here's What UKHSA Suggests

Key Symptoms To Watch For

Anyone who has used non-sterile, alcohol-free wipes does not need to seek medical care unless they develop symptoms of infection, such as:

Wound infection: redness, swelling, warmth, increased pain, or pus/drainage from the site

Infection involving an IV line: redness, swelling, or pain at the insertion site, along with fever or chills

Safety Advice by UKHSA And MHRA

The UKHSA offers the following guidance for safe wipe use:

• Use only sterile wipes on broken skin, wounds, or scratches to reduce the risk of germs entering the body.
• Check that your first aid kit contains only wipes labelled “sterile,” ensure the packaging is intact, and dispose of any out-of-date or damaged products.
• Only use wipes on IV lines if specifically instructed by your healthcare team.

Dr Alison Cave, MHRA Chief Safety Officer, emphasized that wipes intended for medical purposes are classed as medicines.

These products do not have the necessary medicines authorization, and steps are being taken to enforce compliance.

“If you have these wipes at home or in a first aid kit, check the label and only use wipes marked as ‘sterile’ on broken skin,” Dr. Cave advised.

“Healthcare professionals should follow instructions provided in the national patient safety alert.”

Anyone who has used alcohol-free wipes and is concerned about possible infection should speak to a healthcare professional.

The Supreme Court of India, in a landmark decision, authorized the removal of life support for Harish Rana, a 31-year-old man in a vegetative state since 2013.

This marks the country's first Court-approved case of passive euthanasia without a prior living will. The Court ruled that the "right to die with dignity" is a fundamental part of the right to life under Article 21.

Also read: Supreme Court Allows 1st Passive Euthanasia For Man In Vegetative State For 13 Years

Speaking to HealthandMe, the experts said that the landmark ruling will enable families and doctors to make compassionate decisions and may also influence end-of-life protocols.

There are several medical conditions where patients undergo prolonged suffering despite treatment, with no realistic scope for recovery, sometimes for decades.

“This judgment could have a significant impact on end-of-life care practices in Indian ICUs. Many patients remain in prolonged vegetative states with no meaningful quality of life, often sustained only through artificial life support,” Dr. Sandeep Dewan, Senior Director, Critical Care & Chairman ECMO Program, Fortis Gurugram, told this publication.

“The ruling reinforces that while preserving life is important, the quality and dignity of life must also be considered, and it provides clearer pathways for families and doctors to make compassionate decisions in such situations,” he added.

Harish was a BTech student in Chandigarh who suffered severe traumatic brain injury after falling from the fourth floor of his paying guest accommodation in August 2013.

Since then, he has remained bedridden and was being treated with Clinically Administered Nutrition (CAN), where surgically installed PEG tubes helped him with breathing and nutrition.

The apex Court, in its ruling, noted that it can just prolong his biological existence, but it will not lead to any therapeutic improvement.

With the Harish Rana judgment, the apex Court today clarified how passive euthanasia should be applied in cases where a patient’s life is being supported by feeding tubes.

The top Court also waived off the reconsideration period of 30 days and noted that the medical treatment, including the CAN administered to the patient, can be withdrawn or withheld.

"Doctors and hospitals have often been reluctant to stop tube feeding in such patients, fearing that it could be interpreted as 'starving the patient to death',” Dr. Rajeev Jayadevan, Ex-President of IMA Cochin and Convener of the Research Cell, Kerala, told HealthandMe.

“Today’s ruling clarifies that artificial nutrition and hydration are indeed forms of medical treatment. Therefore, withholding such artificial feeding can be considered withdrawal of life-sustaining medical support in situations where treatment offers no prospect of recovery and only prolongs suffering,” he added.

Passive Euthanasia In India

Passive Euthanasia allows a terminally ill or irreversibly comatose patient to die naturally. It involves deliberately withholding or withdrawing life-sustaining treatments (like ventilators, feeding tubes, or medication). It has been legal since 2018, but under strict guidelines.

On the other hand, active euthanasia or assisted suicide for terminally ill patients is legal in several countries, but is not permitted in India.

The Aruna Shanbaug Case (2011) paved the way for passive euthanasia in India.

Shanbaug was a nurse at Mumbai's KEM hospital who remained in a vegetative state for 42 years after an assault in 1973. The hospital staff cared for her and did not stop treatment till she passed away naturally in 2015.

However, in the 2011 Aruna Shanbaug judgment, the SC allowed passive euthanasia by permitting the withdrawal or withholding of life-sustaining treatment under strict legal safeguards.

This framework was further clarified in the 2018 Common Cause judgment, which recognized advance directives or living wills.

Later in 2023, the SC modified the guidelines, noting that withdrawal of life support is permissible only after the approval of the Primary and Secondary Medical Boards.

A Living Will

Dr. Jayadevan noted that, as death is a certainty for all who are living, greater awareness must be created on adults preparing a "Living Will or Advanced Directive".

A Living Will is essentially made when individuals are "still in good health— documenting one’s preference for specific treatment measures in the event of a terminal illness occurring in the future”.

“This will help relatives and doctors to take the right decisions and avoid unnecessary treatment measures in such situations. Unlike the conventional Will that is executed after death, a Living Will is implemented when a person is still alive,” the doctor said.