World Cancer Day: The 5 Deadliest Cancers & Key Risk Factors You Should Know

Updated Feb 4, 2025 | 09:48 PM IST

SummaryWhat makes cancer the deadliest depends upon how many people have it and what percentage of those people survive.
5 Deadliest Cancer

Credit: Canva

Cancer is a large group of diseases that can start in almost any organ or tissue of the body when abnormal cells grow uncontrollably, and go beyond their usual boundaries to invade adjoining parts of the body. According to the World Health Organization (WHO), it is the second most common cause of death globally, accounting for millions of deaths every year. Lung, prostate, colorectal, stomach and liver cancer are the most common types of cancer in men, while breast, colorectal, lung, cervical and thyroid cancer are the most common among women. However, these are not necessarily the deadliest forms of cancer.

What makes cancer the deadliest depends upon how many people have it and what percentage of those people actually survive. Cancer researchers determine this on the basis of five-year relative survival. This is the percentage of people who are expected to survive the effects of a given cancer, excluding their risk of other possible causes of death, for five years past a diagnosis. It is also important to note that what makes cancer really deadly is that practically no cure for it. A cure for cancer would imply that there are no cancerous cells remaining in the body.

Here are the 5 deadliest cancers in the U.S., according to SEER five-year relative survival data for cases diagnosed between 2014 and 2020.

1. Pancreatic cancer occurs when cells in your pancreas, a gland in your abdomen that aids digestion, mutate and multiply out of control, forming a tumour. Major risk factors include smoking, obesity, diabetes, chronic pancreatitis, certain genetic mutations and environmental chemical exposure.

2. Esophageal cancer develops in the oesophagus, which is the tube that connects your throat to your stomach.

3. Liver cancer and intrahepatic bile duct cancer originate in the liver or bile ducts, often linked to hepatitis infections, heavy alcohol use, obesity, and aflatoxin exposure.

4. Lung and bronchus cancer primarily caused by smoking, secondhand smoke, and environmental pollutants, affects the lungs and airways, making it the leading cause of cancer death in the US.

5. Acute myeloid leukaemia (AML) is an aggressive blood and bone marrow cancer that progresses rapidly, often linked to genetic mutations, radiation exposure, and certain chemicals.

ALSO READ: Why Are Lifestyle Factors Making Millennials Vulnerable To Cancer?

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WHO Sets 2027 Flu Vaccine Strains; US States Can Now Order Free COVID Shots For Kids

Updated Sep 25, 2026 | 11:49 PM IST

SummaryFrom February through August 2026, influenza A(H1N1)pdm09, A(H3N2) and influenza B viruses circulated across regions. Influenza A viruses predominated in most regions, while influenza B dominated in Northern and Western Africa, North America and Eastern Asia.

Credit: iStock

The World Health Organization (WHO) today announced its recommendations for the viral composition of influenza (or “flu”) vaccines for the 2027 southern hemisphere influenza season.

The announcement comes as US states can now order free COVID-19 vaccines for eligible children through the federal Vaccines for Children (VFC) program, following a nearly month-long delay.

Why WHO Is Updating Flu Vaccine Strains

Seasonal influenza causes substantial illness and hospitalizations each year. Because influenza viruses continually evolve, vaccine compositions need to be regularly updated.

WHO recommendations guide national vaccine regulators and manufacturers in developing and licensing vaccines for the following flu season.

"For nearly 75 years, the WHO Global Influenza Surveillance and Response System has demonstrated the power of global solidarity in public health," said Dr Maria Van Kerkhove, WHO's Director for Epidemic and Pandemic Management.

"The commitment of countries and laboratories to share data, viruses and expertise enables WHO to make timely vaccine recommendations, strengthening our collective ability to detect and respond to emerging influenza threats. This is global public health collaboration at its best," she added.

Also read: Fall Vaccines 2026: US Doctors Issue COVID, Flu And RSV Jab Guidance

What Are The 2027 Flu Vaccine Strains?

From February through August 2026, influenza A(H1N1)pdm09, A(H3N2) and influenza B viruses circulated across regions. Influenza A viruses predominated in most regions, while influenza B dominated in Northern and Western Africa, North America and Eastern Asia.

WHO recommends the following strains for the 2027 southern hemisphere influenza season:

Egg-based vaccines

  • A/Missouri/11/2025 (H1N1)pdm09-like virus
  • A/Darwin/1454/2025 (H3N2)-like virus
  • B/Tokyo/EIS13-175/2025 (B/Victoria lineage)-like virus

Cell culture-, recombinant protein- or nucleic acid-based vaccines

  • A/Missouri/11/2025 (H1N1)pdm09-like virus
  • A/Darwin/1415/2025 (H3N2)-like virus
  • B/Pennsylvania/14/2025 (B/Victoria lineage)-like virus

WHO also reviewed influenza viruses circulating in animals because of their potential to cause human infections and pandemics.

Free COVID Vaccines For US Children

Read More: COVID-19 Rising In 35 US States: Sore Throat, Diarrhea Among Key Symptoms

The VFC program provides free immunizations to more than half of U.S. children, including those covered by Medicaid, uninsured or underinsured children, and Native Americans and Alaska Natives.

The FDA approved the updated COVID-19 vaccines on August 27, but access through the VFC program was delayed.

Although overall COVID-19 hospitalization rates remain low, they have been rising since mid-June. According to the CDC, hospitalization rates are highest among babies younger than 1 year old and adults aged 65 and older.

States Can Now Order COVID Vaccines

Public health officials from multiple states confirmed that they can now order the free vaccines.

South Carolina’s health department “was alerted yesterday afternoon by the CDC that COVID vaccines would be available for order today,” Casey White, a department spokeswoman, told CIDRAP News.

“Announcements will be shared with VFC providers and health departments to communicate the opening of ordering for all respiratory immunizations.”

WHO said it will issue its recommendation for vaccines for the 2027–28 northern hemisphere influenza season in February 2027.

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New York Assisted Suicide Law: Nearly 20 People Reportedly Died Since August

Updated Sep 25, 2026 | 01:52 PM IST

SummaryNew York’s Medical Aid in Dying Act took effect on August 5, making it the 14th US state to legalize medical aid in dying. While an expert claims nearly 20 people have died via the program, the state health officials are yet to release the exact data.
New York Assisted Suicide Law: Nearly 20 People Reportedly Died Since August

Credit: iStock

Nearly 20 prescriptions for life-ending medication were reportedly issued in New York during the first month of its Medical Aid in Dying (MAiD) law, according to a Columbia University bioethics expert.

However, state health officials have not yet released data showing how many patients actually used the medication.

New York’s Medical Aid in Dying Act took effect on August 5, making it the 14th US state to legalize medical aid in dying.

David Hoffman, assistant professor of professional practice in bioethics at Columbia University, told The New York Post that conversations with doctors, hospitals and organizations indicated that about 20 prescriptions had been issued since the law took effect.

“The state will have the data on a rolling basis. It’s an after-the-fact analysis,” Hoffman told The Post.

The New York State Department of Health has yet to release precise figures on the program’s use.

New York Assisted Suicide Law: Why Is It Controversial?

Read More: Supreme Court Allows 1st Passive Euthanasia For Man In Vegetative State For 13 Years

The lack of publicly available data has drawn criticism from lawmakers who opposed the law. Upstate Republican Assemblyman Andrew Molitor told The New York Sun that New Yorkers should know how many people have requested and used medical aid in dying.

He said information should include patients’ socioeconomic status, insurance coverage, terminal condition, when prescriptions were filled and where the medication was administered.

Western New York Republican state Sen. George Borrello also criticized the wait for the state’s first annual report.

Critics have additionally raised concerns about whether the law could eventually be expanded. Borrello pointed to Canada, where medical assistance in dying was legalized in 2016.

Medical aid in dying remains controversial because it raises ethical, religious and moral questions. Critics warn about the potential coercion of vulnerable patients, while supporters emphasize personal autonomy and relief from prolonged, incurable suffering.

Medical aid in dying generally involves a patient voluntarily taking lethal medication prescribed by a doctor. Euthanasia, by contrast, involves a healthcare professional administering the lethal medication at the patient’s request.

Who Can Qualify For Medical Aid In Dying In New York?

Under New York’s law, patients must:

  • Be at least 18 years old.
  • Be a New York resident.
  • Have a terminal illness with six months or less to live.
  • Have the capacity to make an informed healthcare decision.
  • Be physically capable of self-administering the medication.
  • Receive approval from two physicians.
  • Undergo a psychiatric evaluation when required to assess decision-making capacity.
  • Make an oral request and provide an audio or video recording of that request.

The law also requires a five-day waiting period between obtaining and dispensing the prescription.

Medical aid in dying requires the patient to take the prescribed medication themselves. This differs from euthanasia, in which a healthcare professional administers the life-ending medication.

How Will New York Track The Program?

Also read: Can Right To Die Be Practiced By Non-Terminally Ill Patients?

The law requires the state health commissioner to submit an annual report to the Legislature detailing the program’s use.

Hoffman noted that doctors report when medication is prescribed, but the state may not immediately know whether a patient ultimately takes it.

A New York State Department of Health spokesperson told The Post that the department will publish an annual report with utilization data as required by law.

Health Commissioner Dr. James McDonald said end-of-life decisions are “deeply personal” and should be made individually in consultation with patients, doctors, families and loved ones. The department has also issued guidance and proposed regulations intended to prevent misuse or inappropriate application of the law.

Assisted-Dying Laws In Other Countries

The debate over medical aid in dying extends beyond New York and the US.

France’s National Assembly recently gave final approval to a bill that would allow certain adults with incurable illnesses to receive lethal medication, following years of debate over end-of-life care.

Assisted-dying legislation is also being debated in the UK, where a bill covering England and Wales is returning to Parliament.

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Thyroid Medicine Recall Gets US FDA’s Highest Risk Rating: What To Know

Updated Sep 25, 2026 | 10:33 AM IST

SummaryThyroid medication has been classified as Class I risk, meaning there is a “reasonable probability that the use of or exposure to a violative product will cause serious adverse health consequences or death.”
Thyroid Medicine Recall Gets US FDA’s Highest Risk Rating: What To Know

Credit: FDA/iStock

Vitruvias Therapeutics’ thyroid medication, recalled nationwide in August, has been elevated to the highest risk level by the US FDA.

The recall was issued because the medication may be superpotent, potentially causing hyperthyroidism (overactive thyroid).

On Wednesday, the FDA updated the recall to Class I, its most serious recall classification. It applies when there is a “reasonable probability that the use of or exposure to a violative product will cause serious adverse health consequences or death.”

Which Thyroid Tablets Have Been Recalled?

Also read: US Cancer Death Rates Fall For Men, Women: Lung Cancer Progress Drives Decline

The affected product is:

  • Vitruvias Thyroid Tablets USP 30 mg
  • Lot number: 504950
  • Expiration date: September 30, 2026

In its August 24 recall notice, the company said the tablets were potentially superpotent.

Risks of Superpotent Thyroid Medicines

Millions of people with hypothyroidism rely on thyroid tablets every day to replace hormones their bodies cannot produce.

However, taking superpotent thyroid tablets can cause hyperthyroidism (overactive thyroid). It can force the body's metabolism into overdrive, speeding up organs and bodily functions.

Left untreated, this constant strain can cause serious health complications across multiple systems in the body.

In addition, people taking the medication can be at risk of

  • weight loss,
  • heat intolerance,
  • fatigue,
  • nervousness,
  • muscle weakness,
  • hypertension,
  • chest pain,
  • rapid heart rate,
  • heart rhythm disturbances.

The lot was distributed nationwide in the US to Vitruvias Therapeutics’ direct accounts between January 31 and September 30, 2025. Of 3,655 units released, 1,955 were sold.

Read More: FDA Recalls Popular Thyroid Medication: What Levothyroxine Users Need to Know

Who Is At Greater Risk?

The company identified the following groups as being at greater risk from superpotent thyroid tablets:

  • Elderly people
  • Pregnant women
  • Infants

Excess thyroid hormones in older adults have been associated with adverse outcomes, particularly those affecting the heart.

Vitruvias Therapeutics said it has not received any reports of adverse events known to be linked to the recall.

The company is notifying wholesalers to stop distributing the recalled product and arranging for its destruction.

What Should Patients Do?

Patients taking Thyroid, USP from Lot 504950 should not stop taking it without first contacting their healthcare provider for guidance and/or a replacement prescription.

Hypothyroidism vs Hyperthyroidism

Speaking to HealthandMe, Dr Shruti Kotangale, Consultant Gynaecologist, Obstetrician and Infertility Expert at AIMS Hospital, Dombivli, explained that both conditions are commonly seen in women.

Hypothyroidism occurs when the thyroid is underactive. Symptoms can include tiredness, weight gain, dry skin, hair fall, constipation, feeling cold, a slow heartbeat and low mood or depression.

Hyperthyroidism occurs when the thyroid is overactive. Symptoms may include weight loss, a fast heartbeat, sweating, anxiety, tremors, irritability, frequent bowel movements and difficulty sleeping.

Women should seek medical attention and manage these symptoms without delay.

Common Symptoms Of Thyroid Disorders

Thyroid disorders may cause a range of symptoms, including:

  • Fatigue
  • Cognitive changes
  • Gastrointestinal problems
  • Sensitivity to cold
  • Skin and hair changes
  • Weight changes

How Is Thyroid Disease Diagnosed?

Diagnosis may involve:

  • Physical examination: To check for swelling or nodules in the neck.
  • Blood tests: These may measure TSH, T4 and T3 levels, along with thyroid antibodies when conditions such as Hashimoto’s disease or Graves’ disease are suspected.
  • Ultrasound or thyroid scans may also be used to assess the thyroid’s structure.

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