Pakistan continues to be dealing with a polio outbreak as four fresh cases have emerged, pushing the national tally to 37 this year, according to health officials on October 19, 2024. Health officials said that the regional reference laboratory for polio eradication at the National Institute of Health in Islamabad confirmed wild poliovirus type-1 (WPV1) in two children-one from each Balochistan and Khyber-Pakhtunkhwa.

In recent cases, a girl has been affected from Pishin, and two boys from Chaman and Noshki of Balochistan, and a girl from Lakki Marwat in KP. These are the first detections of the virus within Noshki and Lakki Marwat this year; isolated cases of poliovirus were previously reported within Chaman and Pishin. The province of Balochistan was the worst hit with 20 cases, Sindh had 10, Khyber Pakhtunkhwa had five, and Punjab and Islamabad had one case each.

A gigantic fight against polio has been on going in Pakistan- especially in Balochistan and southern KP-over the last two years. Immunisation campaigns have often been suspended or delayed because of local protests, insecurity, and community boycotts. Consequently, quite a number of children did not get the necessary vaccinations, making existing patches of vulnerability for the virus to flow within those pockets.

Noshki, located near Afghanistan's border, and Lakki Marwat have also recently reported some positive environmental samples that confirm the virus is present here, said a local reference laboratory official. Samples of latest cases are currently under genetic sequencing for checking spread of virus and origin.

As the threat of polio continues to grow, Pakistan has vowed to mount a nationwide campaign against it beginning from October 28. With the zeal to tackle the menace in the most effective manner, over 45 million children under the age of five will be vaccinated across the country.

Today, Afghanistan and Pakistan remain one of the few countries where polio has not yet been eradicated. The WHO said the virus remains a potential serious public health threat in areas with low vaccination coverage and weak surveillance.

India On Alert Against Polio

The country declared itself polio-free since 2014 and has kept the disease on bay almost a decade with very robust vaccination programs; however, two cases of vaccine-derived poliovirus cases reported in recent days from Meghalaya create some amount of doubts over a possible resurgence. Experts observe that in India, despite these detections taking place, strong coverage of vaccination at 90-95% and mandatory surveillance measures keep the risk of this widespread outbreak at bay.

The experts point out, however, that such stable situation in India requires continued surveillance. "Countries like Pakistan and parts of Africa remain at a high risk because vaccination rates in those areas are much lower," Dr. Siddharth, public health expert, said. Vaccination is an indispensable act in order to avoid the spread of this incapacitating disease that manifests most importantly as a nervous system affliction leading to the paralysis of a long period.

With concerted efforts from health authorities, there is hope someday that the scourge of polio will be completely eradicated from the face of the earth and future generations will never suffer from its effects.

Some people love tea, some can't get enough of coffee, but rarely does one think about if the same could influence disease risk later in life. According to a new study, women's risk of osteoporosis could be influenced by their choice of tea or coffee. Osteoporosis is a common occurrence in women aged 50 years and above. Statistics suggest that one in three women will likely be diagnosed with the disease, which renders the body incapable of replacing old bone after it undergoes wear and tear. This means bones become weak, brittle, and more prone to fractures. Bone problems at an advanced age in women can also slow down healing.

High-risk groups for osteoporosis

Older women are at a higher risk of osteoporosis, and that is because of oestrogen. Oestrogen supports bone metabolism, and its levels drop after menopause. Surgery can help remove a woman's ovaries, thereby resulting in the same effect. Researchers at Flinders University in Australia evaluated tea- and coffee-drinking habits of approximately 9,700 US women aged 65 years and above. Participants were required to self-report their tendencies in the survey on four occasions over a 10-year period.

The study also gathered data on women's bone health, measuring bone mineral density in the hip and the narrow connection to the hip with X-ray beams to deduce mineral levels in the bone. Researchers found that women who regularly drank tea had significantly higher hip BMD than those who did not. This could be because of tea compounds known as catechins that could provide the boost cells need to build strong bones. Even smaller differences can significantly improve bone health.

What are the benefits of tea for women's health?

Researchers noted that tea intake could be particularly beneficial for women dealing with obesity. Coffee habits, alternatively, had a different impact on BMD. Studies suggest that women who drank more than five cups of coffee a day were more likely to have lower BMD levels, thereby suggesting that caffeine can negatively affect calcium absorption in the body. Furthermore, experts noted that drinking any amount of coffee can reduce BMD levels in women, especially those who consumed high levels of alcohol.

Scientists note that, because of the limited scope of the study, more research is required in this area to ascertain the results. However, the study offers insights into the possible benefits of drinking tea for women living with osteoporosis. It can go a long way in improving overall wellness and long-term bone health in women.

The research is published in Nutrients.

A team of scientists at South Africa’s National Institute for Communicable Diseases has identified the strain of the Hantavirus that has caused three deaths and infected seven so far aboard the MV Hondius ship in the Atlantic Ocean.

In a presentation to the parliament today, the South African Health Minister revealed that the Andes strain of hantavirus, which spreads human-to-human, has been identified in two people who came off the cruise ship.

“Incredible work of @nicd_sa, South Africa, in sequencing the #hantavirus. There has been excellent collaboration as @WHO

works to coordinate efforts and actions of governments, experts around the world, the Ship to keep people safe,” said Dr. Maria Van Kerkhove, director of epidemic and pandemic preparedness and prevention at the World Health Organization (WHO), in a post on social media platform X.

The NICD scientists found that the Andes strain was the cause of infection in a Dutch woman who died in Johannesburg, and a British man who is still in hospital. Both had become ill on the ship, Reuters reported.

“This is the only strain that is known to cause human-to-human transmission, but such transmission is very rare and, as said earlier, only happens due to very close contact,” the Minister said.

Other strains of hantavirus are more commonly transmitted to humans through contact with infected rodents or their urine, droppings, or saliva.

Also read: Hantavirus Outbreak: WHO Flags 6 Suspected Cases; How The Rare Rodent-Borne Virus Spreads

What is Hantavirus? How Deadly Is The Andes Strain?

As per the WHO, hantaviruses are zoonotic viruses that naturally infect rodents and are occasionally transmitted to humans.

Globally, an estimated 100,000 to 200,000 hantavirus infections occur each year. The majority of these cases are in Asia, particularly China. Most are sporadic or occur in small clusters, linked to contact with infected rodents.

“Hantaviruses are a group of viruses carried by rodents that can cause severe disease in humans. Infection with hantaviruses is found in many parts of the world. Thousands of infections are estimated to occur each year," Van Kerkhove said.

The Ande virus is the only strain of virus with documented human-to-human transmission. It is more common in South America.

"Although uncommon, limited human‑to‑human transmission of HPS due to the Andes virus has been reported in community settings involving close and prolonged contact. Secondary infections among healthcare workers have been previously documented in healthcare facilities, though they remain rare,” WHO said in its situation report.

The WHO also currently assesses the risk to the global population from this event as low and will continue to monitor the epidemiological situation and update the risk assessment as more information becomes available.

"People really do need to understand that there are different degrees of person-to-person transmission," said Angela Rasmussen, a virologist with the University of Saskatchewan's Vaccine and Infectious Disease Organization, as quoted by CBS News.

Read More: Hantavirus on Cruise Ship: Symptoms, Risks, and Prevention

In the case of hantavirus, individual people are usually the end of the line, Rasmussen said, noting that this makes this cluster of cases unusual.

"So this virus — right now anyways — doesn't seem to be as big a risk as something like flu," the expert said.

While symptoms might not appear for weeks, the strain can escalate quickly, leading to severe respiratory failure with a death rate of roughly 40 per cent.

Long day at work? Let's order in. Not feeling happy? How about a cheat meal! And so on - nowadays, the concept of cooking for oneself seems to have become outdated. But little do we realise that these ordering-in habits can cost you a great deal later - it turns out these can speed up ageing. And it does not end here; eating takeaway food regularly can take away months of your life, and even undo all the health benefits of regular exercise. Researchers at the Peking University Third Hospital in China studied 43,000 adults in the UK to come to this conclusion.

How does eating takeaway food affect health?

Researchers conducted blood tests on people who regularly eat takeaway food. They found that their biological age was about three months ahead compared to people who ate home-cooked food. This means that their kidney, liver and immune systems were getting worse at a faster rate than usual. Researchers said that treating yourself to junk food every day could undo the benefits of regular workouts, too. Over the years, these effects could knock off months from your life.

The study, which was published in the BMC Medicine journal, also noted that the three-month difference in biological ageing, driven by dietary habits, might appear insignificant, but it translates to about a 2.2 to 2.7 per cent increase in early death risk. Over time, this can account for 16 per cent of the severe ageing caused by smoking. Some of the effects, as per experts, were linked to obesity and weight gain. However, people's health was worse even if they were not fat. Some of the effects were because of the weight gain and obesity link, but in the case of some participants, the effects were worse, even when they were not fat.

Why is takeaway food discouraged?

The study shows that takeaway food is harmful because of its high fat, salt, sugar and calorie content. But more importantly, it is about the absence of nutrients like fibre and protein. These foods are more likely to be eaten quickly and alone, without paying much attention to the poor quality of ingredients used. To make matters worse, plastic packaging contains harmful chemicals like PFAS - upon heating, these can release cancer-causing components. Researchers said that these factors could be associated with inflammation in blood vessels, a dip in levels of healthy gut bacteria, and a heightened risk of heart disease or type-2 diabetes.

Experts noted that the effects in terms of accelerated ageing and regular consumption of junk food can cancel the benefits of even regular workouts.