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.

An experimental gene therapy has shown tremendous potential in reducing the frequency of seizures in three patients with drug-resistant epilepsy.

The results have raised hopes for a new approach to treating epilepsy patients who do not respond to conventional anti-seizure medications.

All three participants experienced a reduction of more than 90% in their monthly seizure frequency after the treatment. No serious side effects were reported during the study.

The results were reported today in The New England Journal of Medicine by Yang Dai, a neurosurgeon at Xuanwu Hospital of Capital Medical University in Beijing, and his colleagues.

“It’s exciting that there’s such a dramatic effect, and that they see very few side effects,” says Matthew Walker, a neurologist at University College London who was not associated with the study.

How Does the Experimental Gene Therapy Work?

Also read: TV Actor Anuj Thakur Dies At 33 After Suffering A Seizure In His Sleep: When Can Nocturnal Seizures Turn Fatal

The treatment uses a modified virus called adeno-associated virus 9 (AAV9) to deliver genetic instructions directly into the part of the brain from where seizures stem.

The virus carries a gene that instructs specific neurons, known as excitatory neurons, to produce a receptor that are sensitive to a particular medication.

Once the gene is delivered, patients take clozapine, which is an antipsychotic medication. The drug activates the receptors, reducing the activity of the neurons and helping suppress the electrical signals that cause seizures.

Researchers describe the medication as a kind of dimmer switch because it allows them to adjust the activity of the genetically modified brain cells.

Unlike conventional gene therapies, this approach gives researchers a way to regulate the treatment using medication.

What Did The Clinical Trial Find?

Also read: Woman With Epilepsy Dies After Following ChatGPT’s Advice To Stop Medication: Why AI Cannot Replace A Doctor

The study was led by neurosurgeon Yang Dai of Xuanwu Hospital, Capital Medical University, in Beijing.

It involved three adults with drug-resistant epilepsy caused by hippocampal sclerosis, a condition in which scarring develops in the hippocampus, a brain region involved in memory and seizure activity.

All three participants had experienced epilepsy for 10 to 25 years. Despite trying at least two anti-seizure medications, their seizures still remained out of control.

They also experienced at least two seizures per month on average during the three months before entering the trial.

After gene therapy all three participants saw a reduction of more than 90% in their monthly seizure frequency.

Significant Discovery For People With Drug-Resistant Epilepsy

Also read: Can ChatGPT Replace Your Doctor? Why Epilepsy Patients Should Never Alter Medication on AI Advice

Epilepsy is a neurological disorder characterised by recurrent seizures caused by abnormal electrical activity in the brain.

Anti-seizure medications can help many people control their seizures. However, some patients continue to experience seizures despite trying multiple medications.

This is known as drug-resistant epilepsy. According to the International League Against Epilepsy, it generally refers to a failure to achieve control of seizure after sufficient trials of two anti-seizure medications.

Surgery may be an option for patients with focal epilepsy if doctors can identify the brain region responsible for seizures.

Limitations Of The Study

The new gene therapy takes a different approach by targeting the neurons responsible for seizures.

However, experts have raised concerns about the long-term use of clozapine. High doses of the drug have been associated with cardiovascular complications and other adverse effects.

Despite the reduction in seizures, researchers have warned against interpreting the findings as proof that the treatment is effective for all people with epilepsy.

The trial involved only three participants, making it too small to probe the treatment’s long-term safety or effectiveness.

All three also had a specific form of epilepsy related to hippocampal scarring on one side of the brain. The findings cannot automatically be applied to people with other forms of epilepsy or seizures originating in different brain regions.

More than a quarter of Americans (28%) misrepresented symptoms to obtain antibiotics for themselves, while 27% did so to get antibiotics for a child in their care, according to an alarming survey.

The nationwide survey of nearly 1,000 people, published in JAMA Network Open, found that common reasons included feeling very sick, believing antibiotics were the only effective treatment and needing to recover quickly to return to work or school.

The findings highlight the need for better communication between doctors and patients so that concerns are heard and symptoms are appropriately treated, whether or not antibiotics are needed.

“Now that we have a clearer picture of how common these behaviors are and the reasons behind them, the next step is to look at strategies that help patients express their preferences and communicate what they’re feeling to their provider, and for their provider to hear them, understand their concerns, and reassure them,” said Alistair Thorpe, research assistant professor of population health sciences at the University of Utah Health and one of the study's first authors.

What Did The Survey Reveal?

Also read: AI-Created Virus Injected Into A Human For The First Time To Fight Antibiotic Resistance

Among respondents, 28% said they had deliberately exaggerated or fabricated symptoms to obtain antibiotics for themselves, while 27% had done so for a child in their care.

The most common reason was feeling that they or their child were very sick and believing antibiotics were the only treatment that could help.

“It is a tough situation,” Thorpe said. “People are experiencing unpleasant symptoms, and they can have this strong feeling that antibiotics are the only thing that can help them feel better. Being told to just rest and wait is a hard thing to do, and if you think there’s something that could make you feel better, it’s a very hard impulse to override.”

Other reasons included needing to recover quickly to return to work or school and wanting greater control over treatment decisions.

Why Is Taking Unnecessary Antibiotics Dangerous?

Antibiotics treat bacterial infections but do not work against viral infections, which commonly cause cold- and flu-like symptoms. They can also cause side effects.

“These medications are not totally benign for the patient,” explained Andrea Levy, Professor of social sciences at Connecticut State Community College Middlesex and one of the study's first authors. “And antibiotic use contributes to increasing antimicrobial resistance, which is a broader public health concern.”

Unnecessary antibiotic use contributes to antimicrobial resistance (AMR), making bacterial infections harder to treat.

Accurate symptom reporting is therefore important. Doctors need a clear picture of a patient's symptoms to determine whether antibiotics are necessary and avoid prescribing them when they are unlikely to help.

Read More: 98 Years After Penicillin: Are We Running Out Of Effective Antibiotics?

Why Are Children At High Risk With Antibiotic Misuse?

Children commonly receive antibiotics for infections such as ear infections and respiratory illnesses. However, many childhood infections are caused by viruses, against which antibiotics are ineffective.

Unnecessary antibiotic exposure can cause side effects, including diarrhoea, nausea and allergic reactions. It can also contribute to antimicrobial resistance, making future bacterial infections harder to treat.

Repeated antibiotic use may also disrupt the developing gut microbiome, which plays a role in digestion and immune function.

Why Do Patients Misrepresent Symptoms And How Can It Be Prevented?

The researchers emphasise that the findings are not intended to blame patients or caregivers.

“There are very understandable reasons that we can sympathize with about why patients might feel the need to misrepresent symptoms, or why caregivers might do so on behalf of their children,” Levy said. “We’re simply saying: perhaps there’s a better way.”

Past experiences with healthcare providers may influence these decisions. People were more likely to exaggerate symptoms if a doctor had previously dismissed or downplayed their concerns.

Another factor is the mistaken belief that antibiotics helped someone recover from an earlier viral infection. Since viral infections usually resolve on their own, patients may incorrectly attribute their recovery to antibiotics rather than the body's natural healing process, Thorpe explained.

The findings highlight the need for better communication between doctors and patients.

Healthcare providers need to reassure patients that their symptoms are being heard and taken seriously, even when antibiotics are not appropriate.

Public health officials in Stanislaus County, California, have reported four mpox cases. Two are confirmed as Clade I, while testing is underway for the other two.

Three individuals had no recent international travel history, raising concerns about local transmission. The travel history of the fourth person is still being assessed.

“Historically, Clade I mpox cases in the US were linked to international travel. However, since August 2026, more cases have been reported among people without recent international travel,” health officials said.

The cases suggest possible community transmission. However, county officials say the risk to the general public remains low.

“While we have identified four cases in our county, we want residents to know that the risk to the general public remains low,” Dr. Thea Papasozomenos, Stanislaus County Public Health officer, said.

US Reports Sustained Clade I Mpox Transmission

The Center for Outbreak Response Innovation (CORI), supported by Johns Hopkins Bloomberg School of Public Health and the CDC's Center for Forecasting and Outbreak Analytics, has classified the US as being in Scenario 4: Sustained Transmission for Clade I mpox.

This indicates ongoing person-to-person transmission chains in some jurisdictions, primarily among adults with multiple sexual partners, including sex workers and men who have sex with men (MSM).

The CDC reported more than 90 Clade I cases across at least 23 states and Puerto Rico as of October 14, 2026. Domestic transmission had been reported in 10 jurisdictions, with more cases involving people without recent international travel.

Why Is Clade I Mpox A Concern?

Clade I has historically been associated with more severe illness and higher fatality rates than Clade II. Its historical case-fatality rate has been estimated at 1% to 10%, compared with approximately 1% to 4% or lower for Clade II.

The 2024 global outbreak was driven largely by Clade I, particularly the Clade Ib sub-lineage. On August 14, 2024, the World Health Organization (WHO) declared the outbreak a Public Health Emergency of International Concern (PHEIC).

What Is Mpox?

Mpox is a viral zoonotic disease caused by the monkeypox virus, which belongs to the Orthopoxvirus genus, the same genus as the smallpox virus.

It spreads through close contact with infected people, including skin-to-skin and sexual contact, exposure to sores or bodily fluids, and contaminated items such as bedding and towels. Transmission can also occur through contact with infected animals.

What Are The Symptoms Of Mpox?

Symptoms generally appear 5 to 21 days after exposure and include:

• Skin rash
• Fever
• Sore throat
• Headache
• Muscle and body aches
• Fatigue
• Swollen lymph nodes

Most people recover within two to four weeks. However, severe illness can occur, particularly in children, pregnant women and immunocompromised people.

How Can Mpox Be Prevented?

Prevention measures include:

• Avoiding contact with potentially infected animals.
• Washing hands frequently.
• Avoiding close contact with infected people and contaminated belongings.
• Isolating infected individuals.
• Getting vaccinated if at increased risk of exposure.

New Mpox Vaccine Shows Promise

The JYNNEOS vaccine is recommended for people at increased risk of mpox exposure.

BNT166a, an mRNA-based mpox vaccine developed by BioNTech, has shown encouraging early results in its first human trial. The vaccine was generally safe and well tolerated, triggering strong antibody responses across all dose levels.