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.

In a major milestone in fetal and paediatric neurosurgery in India, doctors at the All India Institute of Medical Sciences (AIIMS), New Delhi, have performed the country's first open fetal surgery to repair myelomeningocele, the most severe form of spina bifida.

The six-hour procedure was carried out at 25 weeks of pregnancy, in which surgeons were able to repair the baby's spinal defect before birth. The surgery, performed on November 12, entailed repairing a cerebrospinal fluid leak in the lower back while the baby was still in the uterus.

According to AIIMS press release, the operation followed more than five weeks of preparation in multiple disciplines, including detailed fetal imaging, counselling, planning anaesthesia and surgical simulations.

The procedure was done by more than 30 clinicians and nurses from neurosurgery, maternal-fetal medicine, obstetrics, anaesthesia, plastic surgery, radiology and neonatology.

Professor PS Chandra, Head of Neurosurgery at AIIMS, who facilitated the entire surgical execution by the neurosurgery team, said that prenatal surgery could help reduce the incidence of hydrocephalus and Chiari malformations linked with spina bifida.

What Is Myelomeningocele?

Myelomeningocele is an open neural tube defect in which the spinal cord and its protective coverings protrude through an opening in the developing spine. It occurs when the neural tube, which eventually develops into the brain and spinal cord, does not close completely during early pregnancy.

The condition can cause permanent nerve damage, muscle weakness or paralysis, loss of bladder and bowel control, and complications involving the brain and spinal cord. Some affected babies also develop hydrocephalus, a condition in which excess cerebrospinal fluid accumulates in the brain.

In many cases, surgery to close the spinal defect is performed after birth. However, exposure of the spinal cord to the surrounding amniotic fluid during pregnancy can contribute to further neurological injury.

India continues to face a burden of neural tube defects. A 2024 review of 27 Indian studies estimated their pooled prevalence at 9.46 per 1,000 births.

Also read: India’s Xenotransplantation Push: Can Pig Organs Help Bridge the Organ Shortage? | Interview

Is Fetal Surgery The Way Forward?

Unlike conventional postnatal surgery, open fetal repair involves operating on the fetus while it is still inside the uterus. The surgeon accesses the uterus, exposes the affected area of the baby's spine and closes the defect, protecting the exposed spinal cord and its coverings. The aim is to limit further damage to the developing nervous system and improve certain neurological outcomes.

Professor Deepak Gupta, who led the neurosurgical part of the procedure, said, “This establishes an important new capability for fetal care and paediatric neurosurgery in India. In rigorously selected cases, prenatal repair seeks to limit ongoing injury to exposed neural tissue, reduce the subsequent need for cerebrospinal-fluid diversion for hydrocephalus, and improve selected neurological outcomes. It is not a cure, and long-term multidisciplinary care remains essential.”

Evidence for prenatal repair comes from the landmark Management of Myelomeningocele Study (MOMS), an international clinical trial. It found that 40% of children who underwent prenatal surgery required a cerebrospinal fluid shunt by 12 months of age, compared to 82% of those who underwent surgery after birth. Prenatal repair also helped with better motor outcomes and a lower incidence of hindbrain herniation linked with Chiari II.

But fetal surgery comes with its risks. It can increase the chances of premature delivery. It also carries risks related to the opening and subsequent healing of the mother's uterus. It is therefore performed only on carefully selected pregnancies at specialised centres equipped with resources.

Milestone In Fetal Surgery

The AIIMS procedure brings a complex fetal intervention, which is already done in other countries, to India's public healthcare system.

Professor Neena Malhotra, who led the maternal-fetal medicine and obstetric part of the surgery alongside Professor K Aparna Sharma, said, “This accomplishment reflects the collective commitment of an exceptional multidisciplinary team.”

Professor Sharma added, “Fetal intervention in this case is a very well-reasoned and planned decision to optimise the outcomes of both the baby and the mother. The safety of both mother and fetus depends on detailed counselling, high-quality anaesthesia, and coordinated surveillance before and after surgery.”

AIIMS said the procedure was performed free of cost under the Government of India's Janani Shishu Suraksha Karyakram (JSSK). The mother and fetus will continue to receive close monitoring throughout the remainder of the pregnancy, delivery and newborn period.

Also read: First Human Spinal Cord Transplant Reported In Russia But Can It Reverse Paralysis?

Can Spina Bifida Be Prevented?

Prevention of spina bifida remains essential even though the option of fetal surgery is available. Neural tube closure takes place within the first 28 days after conception, often before a woman realises she is pregnant.

Adequate folic acid intake before conception and during early pregnancy can significantly reduce the risk of neural tube defects. Preconception counselling, folic acid intake and dietary interventions with folate are therefore important to prevent spina bifida.

The World Health Organization (WHO) has issued its first-ever guidelines for the diagnosis and management of type 1 diabetes in adults. The recommendations aim to improve insulin access and blood glucose monitoring in countries where healthcare resources are limited.

Released on November 14 to mark World Diabetes Day 2026, the guidelines cover insulin treatment, blood glucose monitoring and care in emergency and humanitarian settings. They are meant to help healthcare providers deliver safer treatment, regardless of the resources available.

The guidelines come as the global burden of type 1 diabetes continues to grow. In 2025, 500,000 people were diagnosed with type 1 diabetes, adding to an estimated 9.5 million people living with the condition worldwide in 2025, according to the WHO. Although type 1 diabetes is often diagnosed during childhood, it can develop at any age, including adulthood.

WHO Guidelines On Type 1 Diabetes

Also read: Effect of Diabetes on Different Organs: Why the Damage Is Not the Same Everywhere

A primary recommendation is intensified insulin treatment through multiple daily injections, along with the doses adjusted according to blood glucose levels. People with type 1 diabetes cannot produce enough insulin and therefore need lifelong insulin therapy to survive.

The guidelines recognise insulin as an effective and affordable treatment option. Insulin analogues, which are modified forms of insulin designed to alter how long the medicine works, may also be used when needed. The guidelines also address how treatment and monitoring can be adapted in low-resource settings and during emergencies.

The recommendations also emphasise regular blood glucose monitoring.

• HbA1c testing: A blood test that provides an estimate of average blood glucose levels over the previous two to three months.
• Finger-prick testing: Allows people to check their blood glucose levels at home at different points during the day.
• Continuous glucose monitoring (CGM): Uses a small sensor worn on the skin to track glucose levels throughout the day.
• Urine glucose testing: May be considered when blood glucose testing is not available.

Importance Of WHO Guidelines

Also read: World Diabetes Day 2026: Is India's Toxic Air Adding To Its Diabetes Crisis? What Experts Say

More than a century after insulin was discovered, access to affordable treatment remains a challenge for many people with type 1 diabetes. Interruptions in insulin supply can be life-threatening because the body depends on externally administered insulin to regulate blood glucose.

Without enough insulin, blood glucose can rise dangerously and lead to diabetic ketoacidosis (DKA), a fatal complication.

“Insulin is a lifesaving treatment, discovered more than 100 years ago. Yet many people with type 1 diabetes do not have access to affordable and high-quality insulin,” said Dr Søren Brostrøm, WHO Director of Noncommunicable Diseases and Mental Health.

“The new WHO guidelines provide evidence-based recommendations to help countries deliver the best possible care, including in settings where resources are limited and health services are disrupted.”

The WHO guidelines aim to reduce these gaps by providing recommendations that can be implemented across different healthcare systems, including those with limited resources. They also support the organisation's bigger target of ensuring universal access to affordable insulin treatment and blood glucose self-monitoring by 2030.

The WHO has encouraged countries to involve people living with type 1 diabetes in designing diabetes programmes, so that they reflect practical challenges patients face.

Type 1 diabetes is an autoimmune condition in which the immune system destroys the insulin-producing beta cells in the pancreas. Unlike type 2 diabetes, it is not primarily caused by insulin resistance or lifestyle factors.

People with the condition need lifelong insulin treatment, alongside regular glucose monitoring and medical follow-up. Without appropriate management, diabetes can lead to complications affecting the eyes, kidneys, nerves and cardiovascular system.

Did Robert F Kennedy Jr. lie during his 2025 confirmation hearings to become US health secretary? US senators have opened up an investigation into whether Kennedy misled Congress about his 2019 trip to Samoa, months before a measles outbreak killed 83 people.

Ron Wyden of Oregon, incoming chair of the Senate Finance Committee, has launched an investigation into evidence that Kennedy “unlawfully lied” during his confirmation hearings, The Guardian reported.

Wyden is also expected to seek records from Children's Health Defense (CHD), the anti-vaccine non-profit Kennedy headed at the time, including documents related to his Samoa visit.

“We are beginning an investigation into evidence that Secretary of Health and Human Services Robert F Kennedy, Jr unlawfully lied to Congress on multiple occasions,” Wyden said in a letter to the group sent on Wednesday and obtained by The Guardian. The letter was also signed by Angela Alsobrooks, a Democratic senator from Maryland.

The investigation comes as the US faces its worst measles crisis in decades. More than 5,000 cases and eight deaths have been reported in 2026, the highest annual case count since 1991. The country is also at risk of losing its measles elimination status, achieved through decades of public health and vaccination efforts.

Also read: US Set To Lose Measles-Elimination Status After 26 Years: Prof Devi Sridhar Explains Reasons Behind Resurgence

What Is The Controversy Surrounding RFK Jr's Samoa Trip?

Kennedy allegedly misrepresented the purpose of his 2019 Samoa visit during two congressional hearings last year, telling lawmakers that the trip had “nothing to do with vaccines”.

However, letters obtained by The Guardian and the Associated Press in August reportedly contradicted his testimony.

In a letter to the Samoan prime minister before the visit, Kennedy explicitly said he wanted to study the measles, mumps and rubella (MMR) vaccine. He used the words “vaccine” or “vaccination” eight times.

“I am writing this letter to you in the hope that we might be helpful to the people of your great nation,” he wrote, suggesting that the deaths of two children following MMR vaccination could have resulted from manufacturing issues.

“I would propose my team conduct detailed health informatics assessment in Samoa of what happened with your MMR vaccines,” Kennedy wrote.

How Is Kennedy's Visit Linked To Samoa's Measles Outbreak?

Kennedy visited Samoa just months before a measles outbreak killed 83 people. Critics have argued that his presence emboldened anti-vaccine activists and worsened the country's vaccination crisis.

Children were among those who died in the outbreak, which exposed the consequences of low vaccination coverage.

Kennedy has denied the allegations, saying he never made public statements about vaccines or discouraged Samoans from getting vaccinated.

Read More: EXCLUSIVE: Ex-CDC Vaccine Advisor Says Measles Outbreak Bigger Than Reported, Slams RFK Jr’s ‘No-See Evil’ Approach

Why Is RFK Jr Under Scrutiny?

The letters have raised questions about the purpose of Kennedy's visit and the accuracy of his congressional testimony.

During his confirmation process, Kennedy pledged to maintain existing vaccine policies. However, after taking office, he moved to change several of them.

“We are deeply concerned by the tactics Kennedy has used – both before and during his tenure as secretary – to stand in the way of children receiving life-saving vaccinations,” the two Democratic senators wrote.

“In Samoa and in the United States, unvaccinated children have died tragic and preventable deaths during measles outbreaks. We intend to hold Secretary Kennedy accountable for the grave harm he has caused to vulnerable children. We also intend to hold him accountable for any false statements made to Congress, a crime that undermines the Senate’s ability to fulfill its constitutional duties.”

What Has Kennedy Said About Measles Vaccination?

Long known for his vaccine-skeptic views, Kennedy has spent years amplifying misinformation about vaccines, including the MMR vaccine.

But as measles cases mounted in the US, he urged American parents to vaccinate their children during an August CNN interview, marking a notable shift in his public messaging.

The appeal came as US measles cases surpassed the 2025 annual total.

"I've never questioned the efficacy of the MMR vaccine," the health secretary told CNN. However, the damage had already been done, with cases continuing to rise and eight deaths reported in 2026.