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.

Amid the growing burden of Non-Communicable Diseases (NCDs), India’s Union Ayush Ministry has launched yoga protocols that will target vulnerable groups with diabetes, high blood pressure, and asthma.

The “Yoga Protocol for Non-Communicable Diseases (NCDs) and Target Groups” is a significant push towards reshaping the country’s healthcare narrative from treatment to prevention, PTI reported.

NCDs such as diabetes, hypertension, cardiovascular ailments, chronic respiratory conditions, and mental health disorders are increasing significantly in the country. These also account for about 60 percent of all deaths in the country, signaling a clear need to focus on preventing the lifestyle-driven illnesses.

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Prataprao Jadhav, Union Minister of State (Independent Charge) for Ayush, noted that prevention of these conditions is important for the better health of the nation, and yoga is India’s answer to the rising burden of lifestyle diseases.

“Through these evidence-based protocols, we are empowering every citizen to take charge of their own health and well-being in a simple, accessible, and sustainable manner. By integrating yoga into daily life, we aim to shift the focus from illness to wellness, reducing long-term healthcare pressures,” he said.

“This initiative reflects our commitment to building a healthier nation through holistic, preventive, and people-centric approaches rooted in India’s rich traditional knowledge,” the minister added.

What Are The Protocols?

It is part of the Yoga Mahotsav 2026, launched earlier this month by Union Ayush Minister Prataprao Jadhav, developed by the World Health Organization (WHO).

The protocols are designed as structured, evidence-based modules that integrate Yogic practices into daily life in a simple, accessible, and scalable manner.

The initiative has specific yoga interventions curated for major health conditions such as:

• diabetes — improving metabolic balance and glycemic control;
• hypertension — calming the nervous system and regulating blood pressure;
• bronchial asthma — strengthening respiratory capacity and improving lung function
• emotional well-being — breathing and meditation aimed at reducing stress, anxiety, and depression.

Further, it includes

• playful yoga modules for young children
• mental health-focused routines for adolescents,
• mobility-enhancing practices for the elderly
• specialized guidelines for women and pregnant mothers.

Yoga 365

The Ministry of Ayush has also launched Yoga 365 — a nationwide campaign to make yoga an integral part of citizens' daily lives — that goes beyond the International Day of Yoga (IDY), marked annually on June 21 worldwide.

According to the National Sample Survey (NSS), awareness of traditional systems like yoga stands at 95 percent in rural India and 96 percent in urban India.

The NSS also found that in around 1.1 crore households in rural India and around 1.4 crore households in urban India, at least one household member regularly practices yoga.

The Yoga 365 campaign aims to

• mobilize communities through mission-mode outreach,
• promote behavior change,
• integrate yoga into diverse spaces—from schools and offices to neighborhood groups and digital platforms.

The Morarji Desai National Institute of Yoga, under the Ministry of Ayush, has also signed a Memorandum of Understanding with the wellness platform Habuild to offer free daily online yoga sessions.

The COVID-19 BA.3.2 strain, nicknamed Cicada Variant, is spreading rapidly in the US, raising the possibility of becoming the dominant strain in the country, according to experts.

The US Centers for Disease Control and Prevention (CDC), in its latest report, has raised concerns about BA.3.2 — a highly mutated variant of COVID.

BA.3.2 has already been reported in at least 23 countries, including 25 states in America, as per the report. It has also been detected in 132 wastewater samples from Massachusetts.

The 25 states include California, Connecticut, Florida, Hawaii, Idaho, Illinois, Louisiana, Maine, Michigan, Maryland, Massachusetts, Missouri, New Hampshire, New Jersey, Nevada, New York, Ohio, Pennsylvania, Rhode Island, South Carolina, Texas, Utah, Vermont, Virginia, and Wyoming.

"Cicada can become the dominant strain in the US,” Dr. Robert H. Hopkins Jr., medical director of the National Foundation for Infectious Diseases, told USA TODAY.

While it is not certain, it can also "drive a US summer surge.”

The CDC warned that a new variant "with substantial capacity to evade immunity from previous infections or vaccines could be associated with seasonal increases in COVID-19 activity.”

In the US, COVID-19 is still linked to roughly 300 to 500 deaths per week, according to recent data based on provisional estimates from the CDC.

Brandon Dionne, an associate clinical professor of pharmacy and health systems sciences at Northeastern University, stated that the virus may evolve and increase the possibility of more severe disease.

“It’s something we definitely want to monitor,” Dionne said. “It could, over time, become the dominant strain in the US, but it’s not yet there," he said.

Also read: COVID Variant BA.3.2 Spreads To 23 Countries: Is The Variant Under Monitoring A Cause Of Worry?

What Is The Cicada COVID Variant?

Cicada was first identified in a respiratory sample in South Africa in November 2024.

It is a descendant of the Omicron BA.3 lineage, and is genetically distinct from the previously circulating JN.1 lineages (including LP.8.1 and XFG).

BA.3.2 comprises two major branches, BA.3.2.1 and BA.3.2.2. BA.3.2.2 also has substitutions like: K356T, A575S, R681H, and R1162P.

The World Health Organization (WHO) has designated BA.3.2 as a Variant Under Monitoring (VUM). It means the variant may not be that dangerous yet, but it may have concerning mutations.

The CDC’s latest Morbidity and Mortality Weekly Report explains that Cicada has “70 to 75 substitutions and deletions in the gene sequence of its spike protein”.

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Will Current COVID Vaccines Work?

The variant is particularly concerning as it provides no immune protection to people with previous infection or even vaccination.

“The number of mutations from JN.1 viruses makes it less likely that the current vaccines will be highly effective against Cicada, but we need more data to better answer this question,” Dr. Hopkins Jr. said.

However, according to the WHO, current COVID vaccines are expected to continue protecting against severe disease. Moreover, the WHO said BA.3.2 doesn’t seem to be making people sicker so far and hasn’t resulted in increased hospitalizations and deaths.

Common symptoms of Cicada variant include:

• Cough
• Fever or chills
• Sore throat
• Congestion
• Shortness of breath
• Loss of smell or taste
• Fatigue
• Headache.

The Italian authorities this week have confirmed the first human case of H9N2 Avian Flu in the Lombardy region – also the first in the European Union.

The influenza A(H9N2) infection was identified in a traveler returning from a non-European country, where the virus has previously been identified in birds. The patient has coexisting medical conditions and is currently receiving medical treatment in a hospital.

Italy’s Ministry of Health, in a statement, said that they identified “infection with the low-pathogenicity avian influenza A (H9N2) virus of animal origin, in a frail person with concomitant illnesses, who came from a non-European country where he contracted the infection, and is currently hospitalized”.

Public health authorities in the country have performed contact tracing as a precaution to identify and control possible onward transmission and have initiated several epidemiological and microbiological investigations.

“All the required checks were promptly carried out, and the relevant contacts were identified, as part of the ordinary prevention and surveillance activities. Currently, no critical issues have been identified, and the situation is being constantly monitored,” the Ministry said.

What is H9N2?

H9N2 is a subtype of the avian influenza A virus (bird flu) that causes respiratory illness in poultry worldwide and is endemic in many parts of Asia, Africa, and the Middle East.

While low-pathogenic in birds, it sporadically infects humans—usually children—causing mild, influenza-like illness, though severe cases can occur.

According to the WHO, most human cases of infection with avian influenza A(H9N2) viruses are exposed to the virus through contact with infected poultry or contaminated environments.

Also read: Japan Confirms New Highly Pathogenic Bird Flu Outbreak: Report

Human infection tends to result in mild clinical illness. However, globally, there have been some hospitalized cases and two fatal cases reported in the past.

“Based on available information, further sporadic human cases could occur as this virus is one of the most prevalent avian influenza viruses circulating in poultry in different regions. With the currently available evidence, the WHO assesses the current public health risk to the general population posed by this virus as low,” the WHO said.

Human bird flu cases have been reported in countries like China, India, the UK, and Vietnam, often resulting in full recovery.

Also read: UK Reports Its First Human Case Of Bird Flu

Rising Global Bird Flu Cases: Are Humans At Threat

Globally, the spread of bird flu cases has been driven by migratory birds, with increasing outbreaks in poultry farms across Japan, India, South Korea, and the US, among others.

To date, most human cases have occurred in people handling infected poultry or animals.

Key Symptoms of bird flu in humans include:

Cough,

sore throat,

runny or stuffy nose,

difficulty breathing

High fever (often >38°C),

fatigue,

muscle/body aches

Conjunctivitis (red/irritated eyes),

nausea,

vomiting,

diarrhea.

In severe cases, pneumonia and Acute Respiratory Distress Syndrome (ARDS), have been reported.

Human infections remain rare, and the risk is also low, yet scientists say that the virus may someday evolve into a variant that can cause significant harm to humans. Recent infections in mammals (like cattle) increase concern.

Bird flu (H5N1) was detected in the US milk supply, particularly in raw milk from infected dairy cows, with high levels found in milk and udder tissues.

“There is a consensus among those who study how infectious diseases originate and spread that the next pandemic in humans is most likely to originate in a bird flu. Of the different types of bird flu that are especially important, H5N1 avian influenza is considered the most likely candidate for a spillover event, with a high fatality rate,” Dr. Gautam Menon, Professor of Physics & Biology, Ashoka University, told HealthandMe.

“From the small number of infections in humans that have been diagnosed, we know that about 30-40 percent of such cases can be fatal. But we don’t know the possible background of infections in which these deaths or serious cases might occur. In particular, the possibility of asymptomatic infections is open,” he added.