Stomach cancer is a type of cancer that develops in the lining of the stomach. Also, known as Gastric cancer, it affects the elderly more than the adult. According to the American Cancer Society, about 6 of every 10 people diagnosed with stomach cancer each year are 65 or older. Also, the lifetime risk of developing stomach cancer is higher in men (about 1 in 101) than in women (about 1 in 155).

A health expert, speaking to a leading media house, emphasized five common symptoms of stomach cancer that should not be ignored:

1. Unexplained weight loss: Losing weight without trying or experiencing an unexplained drop in appetite, which may signal cancer progression.

2. Pain in the upper part of the abdomen: Persistent or occasional pain in the stomach area, often after eating, can become more severe as the condition progresses.

3. Frequent vomiting after meals: Nausea, sometimes accompanied by vomiting, may occur especially after meals and is linked to cancer blocking or irritating the stomach.

4. Vomiting blood, which may appear coffee-colored: This can indicate bleeding in the stomach, often caused by ulcers or tumors, and requires immediate medical attention.

5. Black, tarry stools: This occurs when blood from the stomach is digested and passed through the intestines, signaling potential internal bleeding

There are also other concerning signs that should not be overlooked such as jaundice, unexplained weight loss, early onset of diabetes, dark stools, and loss of appetite. Health experts strongly advise seeking immediate medical attention if you notice any of these symptoms. If you or a loved one experience these signs, it's crucial to visit a physician for a thorough evaluation to rule out serious underlying health conditions.

How Does Stomach Cancer Spread?

Oncologist Dr Pankaj Kumar Pande, Director–Surgical Oncology, Max Super Specialty Hospital, Shalimar Bagh, Delhi explained that this form of cancer spreads through three main pathways: Direct spread, lymphatic spread, and bloodstream.

1. Direct Spread: In its early stages, stomach cancer can invade nearby tissues and grow into the deeper layers of the stomach or spread to surrounding organs such as the oesophagus, liver, pancreas, or intestines.

2. Lymphatic Spread: Cancer cells can travel through the lymphatic system. The most common areas affected are the regional lymph nodes near the stomach, particularly those around the liver and diaphragm.

3. Bloodstream: "Cancer cells can enter the bloodstream and travel to distant parts of the body," which is a common route for stomach cancer to metastasize to distant organs.

He further explained that cancerous cells spread from the original tumour to other parts of the body through a process called Metastasis. The most common sites for the spread are the liver, lymph nodes, peritoneum, lungs, bones, and ovaries.

The US Centers for Disease Control and Prevention (CDC) and the UK Health Security Agency (UKHSA) have issued travel health advisories warning travelers about the growing risks of mosquito-borne diseases, including chikungunya and yellow fever.

The CDC has issued a Level 2 Travel Health Notice for Costa Rica following a chikungunya outbreak, while UK health authorities have alerted travelers about rising imported chikungunya cases and yellow fever activity across multiple countries.

CDC Issues Level 2 Travel Health Notice

The CDC warned American travelers to "practice enhanced precautions" after Costa Rica reported a chikungunya outbreak.

On July 1, Costa Rica's Ministry of Health declared an active outbreak in the oceanside community of Playa Langosta in the western province of Guanacaste.

An epidemiological survey identified 45 suspected cases, of which four were laboratory confirmed, while 17 others were considered likely linked to the outbreak.

According to the US Embassy in Costa Rica, the cases include both Costa Rican nationals and foreign visitors. The embassy said local transmission means the virus is now circulating among the local mosquito population rather than being limited to infected travelers.

Costa Rica has reported 16 total cases this year, with the previous reported case dating back to 2017.

UKHSA Warns Over Rising Chikungunya Cases

The UK Health Security Agency issued a warning for holidaymakers travelling to affected regions as imported chikungunya cases continue to rise.

"Are you, or someone you know, heading off on a tropical trip? It's worth being aware of chikungunya, a mosquito-borne virus that can cause severe joint pain. Check out our blog post to learn how to stay protected," the UKHSA said in a post on X.

UKHSA reported 112 confirmed and probable chikungunya cases among travelers returning to England, Wales and Northern Ireland in 2024—almost one and a half times the number reported in 2023.

"Travel to India accounted for the majority of these cases, followed by travel to Pakistan and Brazil – all popular destinations for people travelling from the UK," the agency added.

Yellow Fever Alert Issued for Multiple Countries

The UK government-backed Travel Health Pro has also warned travelers about increasing yellow fever activity.

Since the beginning of 2026, 95 confirmed yellow fever cases have been reported globally.

Confirmed cases have been reported in:

• Bolivia
• Brazil
• Colombia
• Ecuador
• Peru
• Venezuela
• Burkina Faso
• Central African Republic
• Cameroon

What Is Chikungunya?

Chikungunya is a mosquito-borne viral disease transmitted primarily by Aedes aegypti and Aedes albopictus mosquitoes, the same mosquitoes that spread dengue fever.

Symptoms usually appear three to seven days after an infected mosquito bite and include:

• Sudden fever
• Severe joint pain
• Headache
• Nausea
• Fatigue
• Rash (in about half of cases)

Unlike dengue, chikungunya can leave lingering effects, with joint pain and fatigue lasting for weeks, months or even years.

People at higher risk of severe illness include:

• Newborns
• Older adults
• People with hypertension
• People with diabetes
• People with heart disease

The mosquitoes responsible for spreading chikungunya commonly breed in stagnant water found in overhead tanks, coolers and unused containers.

What Is Yellow Fever?

Yellow fever is a viral disease transmitted through the bite of infected mosquitoes. The infection can be severe and may become fatal in some cases if not managed appropriately. Vaccination is recommended before travelling to certain affected regions.

Initial Symptoms

• Fever
• Chills
• Severe headache
• Back pain
• General body aches
• Nausea
• Vomiting
• Fatigue
• Weakness

Severe Symptoms

• High fever
• Yellowing of the skin or eyes (jaundice)
• Bleeding
• Shock
• Organ failure

The US Food and Drug Administration (FDA) has identified a new Cyclospora outbreak, which is not related to ongoing outbreaks in the country causing watery diarrhea and hospitalizations among thousands.

The agency said the outbreak has sickened 72 people and is linked to an unspecified product. The FDA said the source has "not yet been identified."

The announcement comes as the US continues to report one of its largest cyclospora outbreaks. According to the US Centers for Disease Control and Prevention (CDC), there have been 4,173 laboratory-confirmed and domestically acquired cases of cyclosporiasis across 41 states since May 1.

A total of 308 people with confirmed infections have been hospitalized, but no deaths have been reported.

The CDC also reported 767 travel-associated cases during the same period, resulting in 33 hospitalizations and no deaths. These cases were linked to contaminated food or water consumed outside the US.

Lettuce-Linked Outbreak In 5 states

According to the Michigan Department of Health and Human Services, a Cyclospora outbreak linked to iceberg lettuce distributed by Taylor Farms has sickened 7,664 people across Indiana, Kentucky, Michigan, Ohio and West Virginia, with 160 hospitalizations.

Michigan has reported about 7,000 cases, while Ohio has recorded nearly 3,500 cases, according to the Toledo-Lucas County Health Department.

“I want to stress that our investigation continues, including into other potential sources and commodities for other clusters of illness,” said Kyle Diamantas, acting FDA commissioner. Meanwhile, Health and Human Services Secretary Robert F. Kennedy Jr. this week said the outbreak is “under control.”

Why Is It So Difficult To Find the Source?

Also read: Cyclospora Parasite Outbreak: Why You Should Avoid Packaged Salads and Go For Loose Greens

According to experts, Cyclospora infection caused by the parasite Cyclospora cayetanensis is much harder to trace than common foodborne bacteria such as E. coli and Salmonella.

Investigators typically use DNA fingerprinting to connect bacterial infections to contaminated food through laboratory networks such as PulseNet. However, this method is much less effective for Cyclospora because the parasite has a more complex genetic makeup, making it difficult to link infections to a single food item or supplier.

Dr. Max Teplitski, former head of the Division of Food Safety at the US Department of Agriculture and now chief science officer at the International Fresh Produce Association, said the parasite remains one of the most difficult foodborne pathogens to investigate, contributing to delays in identifying the outbreak source, CNN reported.

How To Prevent Cyclospora Infection

Read More: Cyclospora Parasite Spreads to More US States: Foods to Avoid Right Now

The CDC recommends the following steps to reduce the risk of infection:

• Wash your hands thoroughly with soap and water before and after handling fresh produce.
• Rinse fruits and vegetables under running water before eating, cutting or cooking them.
• Do not rewash produce labeled "prewashed."
• Scrub firm produce, such as melons and cucumbers, with a clean produce brush.
• Cut away bruised or damaged portions before eating.
• Refrigerate cut, peeled or cooked fruits and vegetables within two hours.

Cyclospora spreads through food or water contaminated with human feces and is not transmitted directly from person to person.

Dr. Darien Sutton, an emergency medicine physician and ABC News medical correspondent, emphasized that alcohol-based hand sanitizers are ineffective against the parasite. "This type of parasite doesn't easily go away with alcohol-based hand sanitizer. So, good old handwashing is really key here," Sutton said.

A relentless heatwave is sweeping across parts of Europe, Asia, and Africa, pushing temperatures to dangerous levels and triggering widespread disruptions.

While France and Japan are battling scorching conditions and issuing health alerts, extreme heat in parts of Africa has reportedly killed camels, highlighting the growing human, environmental, and economic toll of intensifying climate extremes..

In addition, countries including Spain, Italy, Greece, Portugal and Germany are also battling extreme heat and wildfire threats, while climate change is worsening wildfire risks in the US and Canada.

France Records Excess Deaths

A deadly heatwave in France in late June led to 5,764 excess deaths, according to updated data released by the country's public health agency.

The revised analysis found that 21,674 people died between June 17 and July 2, compared with the 15,910 deaths normally expected during the same period—a 36% increase in mortality.

Also read: World Brain Day: Climate Change Is Not Just Harming The Planet, It Could Also Be Affecting Your Brain

Japan Heatwave Leaves 14 Dead

Japan is also grappling with extreme temperatures. More than 450 people were taken to hospitals for heat-related illnesses in a single day in Tokyo—the highest daily figure since records began 16 years ago, emergency services said.

The update comes as the country endures a heatwave that has killed at least 14 people over the past week.

UK Issues Heat Health Alerts

The UK has issued yellow heat health alerts across central and southern England, with temperatures forecast to reach 30°C (86°F).

The UK Health Security Agency (UKHSA) warned that the heat is expected to cause minor impacts on health and social care services while increasing risks for vulnerable people. The alerts remain in effect through Sunday as parts of the country continue to experience prolonged dry weather and drought conditions.

Read More: Europe Heatwave Causes 10,000 Excess Deaths; England, Wales Record 2,700 More Fatalities

Camels Struggle To Survive Extreme Heat

Camels, long regarded as the "ships of the desert," are also struggling with extreme heat in Africa.

The BBC reported that camel shepherds in Ethiopia's Afar region have observed blisters on camels' feet, watery eyes, and skin burns caused by scorching sand.

Research from Somalia found drought-related camel mortality affected nearly 46% of camel-owning households, while another study from Algeria reported a significant rise in camel deaths during summer heatwaves.

Scientists say prolonged heat and drought cause stress, dehydration, disease, and reduce access to water and vegetation essential for camel survival.

Europe Continues to Break Heat Records

According to the Copernicus Climate Change Service (C3S), June 2026 was the hottest June ever recorded for western Europe and the second warmest globally.

The World Meteorological Organization (WMO) said the heat has continued into July, fuelling wildfires in France and the Iberian Peninsula. Spain's Fabra Observatory recorded 40.5°C on July 8, the highest temperature in more than a century of observations.

"Heatwaves like this are what we expect to see in a changing climate," said John Kennedy, head of climate information at WMO.

"In the 50 years since the historic heatwave in 1976, Europe as a whole has warmed by around two degrees. It's one of the fastest warming continents and extremes of temperature have increased too."

Why Heatwaves Are So Dangerous

Heat is often called the "silent killer," with an estimated 489,000 heat-related deaths each year between 2000 and 2019.

"Prolonged exposure over several days, particularly when temperatures remain high at night, means the body enters each new day already stressed," said Lachlan McIver, Health Advisor at the WHO-WMO Climate and Health Joint Office.

According to scientists, climate change is driving increasingly severe heatwaves. A recent study by the Potsdam Institute for Climate Impact Research found that warming ocean waters account for 50–64% of the increase in land heatwaves globally.