Singer Jesy Nelson recently shared an emotional update regarding the complications she is experiencing in her pregnancy with twin babies. Former Little Mix singer Jesy, who is having twins with partner Zion Foster, announced that she has been diagnosed with pre-twin-to-twin transfusion syndrome (pre-TTTS). The condition, which is present in pregnancies involving twins with a shared placenta, has serious risks involved and needs intense medical supervision. As Nelson embarks on this difficult journey, her story enlightens us about a rare but dangerous condition many expectant parents may not know much about.
Twin-to-twin transfusion syndrome is a rare but dangerous condition that arises in monochorionic twin pregnancies, in which identical twins share a single placenta. The placenta supplies the developing babies with oxygen, nutrients, and blood flow, but in TTTS, there is an imbalance of blood vessels that interconnect the twins, and thus the vital resources are not evenly distributed. One twin, or the donor twin, shares excess blood with the other, referred to as the recipient twin. This leads to one baby becoming malnourished and possibly anemic, and the other in danger of heart problems due to too much blood.
Nelson described her diagnosis in a heartfelt Instagram video, explaining that she is currently in the pre-stage of TTTS and undergoing frequent monitoring. "I am being scanned twice a week, and each time, things have gotten a little worse," she shared, expressing her fears and hopes for the health of her babies.
If left untreated, TTTS can have devastating consequences. Medical research indicates that:
TTTS usually advances in stages, beginning with minimal changes in fluid levels and worsening as one twin continues to get an unequal share of blood. In extreme cases, fetal laser surgery, referred to as the Solomon technique, can be employed to divide the blood vessels and balance the twins.
Identical twins may develop differently, and their own unique form of placental sharing can have a dramatic effect on pregnancy risk. Jesy Nelson's twins are considered monochorionic diamniotic (mono/di), which means they share a placenta but have two amniotic sacs. This is the type of pregnancy in about 70% of identical twin pregnancies and carries an increased risk of complications like TTTS, umbilical cord entanglement, and growth restriction.
Conversely, dichorionic diamniotic (di/di) twins both have a separate placenta and amniotic sac, which greatly diminishes the threat of TTTS. Twin pregnancy type is normally identified by early ultrasound, with physicians being able to track future complications from inception.
Twin pregnancies, even without the presence of TTTS, entail a variety of health risks to the mother as well as infants:
Over 60% of twin pregnancies end in premature delivery, with birth usually taking place before 37 weeks. Premature infants can have immature organs and need neonatal intensive care (NICU) assistance to assist with breathing, feeding, and infection fighting.
Pregnant women with multiples are at increased risk of having high blood pressure during pregnancy. This, if left untreated, can result in preeclampsia, a serious complication of pregnancy that can result in damage to organs, preterm labor, and in some cases, maternal or fetal death.
Pregnant women carrying multiples are twice as likely to experience anemia, a condition where the body does not produce enough healthy red blood cells. This can lead to fatigue, dizziness, and complications during delivery.
According to John Hopkins Medicine, multiple birth babies are twice as likely to have congenital abnormalities compared to single births. These can include heart defects, neural tube defects, and gastrointestinal issues.
When twins have to share a placenta, they are more likely to have polyhydramnios (excess amniotic fluid) or oligohydramnios (not enough amniotic fluid). Both result in distress to the babies during fetal development and can result in premature labor.
Twins are at increased risk of excessive postpartum hemorrhage because their uterus is larger and there are greater blood supply needs.
Jesy Nelson's openness about her challenging experience is raising awareness for TTTS, a condition that few individuals—let alone expectant mothers and fathers—might be aware of. Through her tearful video, Nelson stressed the significance of knowing about twin pregnancies aside from the thrill of having multiples. "We had no idea that this type of thing occurs when you're having twins. We just desperately want to make people aware of this because there are so many people who aren't aware."
Her case reminds us of the intricacies involved in twin pregnancy and the significance of early identification and medical management. For mothers carrying twins, frequent ultrasounds and vigilance can become a life-and-death issue for early detection and better outcomes of both babies.
Through constant medical attention and care, she and her partner Zion Foster remain positive and get ready for their babies to be born. In other parents whose situations are no different, the story of Nelson highlights awareness, medical progress, and emotional encouragement in handling complicated pregnancies.
The expecting parents of twin siblings are advised to discuss TTTS screening and possible interventions with their physicians to give their babies the best chance.
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Paul Alexander woke up inside a 600-pound giant metal tube and never left until he died. Paul depended on an iron lung for every breath, a machine that had largely disappeared from modern medicine.
Known as "the man in the iron lung," Alexander spent more than seven decades living inside the metal cylinder after contracting polio as a child. Paul became a symbol of resilience, determination, and the life-saving power of vaccines. His remarkable story is recalled even after his death in March 2024 at the age of 78.
The doctors placed him inside an iron lung, a mechanical ventilator that kept him alive by helping his lungs expand and contract.
Although everyone initially believed he might not survive, Alexander defied expectations. He went on to graduate from college, earn a law degree, become a practicing attorney, publish a memoir, and inspire millions through interviews and social media.
Paul Alexander refused to let the machine define him. Doctors taught him a technique called "frog breathing" or glossopharyngeal breathing. By using the muscles of his mouth and throat, he learned to gulp air into his lungs in small amounts.
This helped him to leave the iron lung for short durations, attend school, pursue higher education, and eventually work as a lawyer. Still, he depended on the iron lung for most of his life, especially while sleeping.
Despite his conditions, Alexander earned a bachelor's degree, graduated from law school, practiced as a lawyer in Texas, and wrote his memoir - Three Minutes for a Dog: My Life in an Iron Lung.
His determination challenged and defied assumptions about disability and demonstrated that severe physical limitations need not prevent education, work, or meaningful relationships.
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An iron lung, also called a negative-pressure ventilator, is a large cylindrical machine that helps people breathe when the muscles controlling respiration become paralyzed.
Unlike today's ventilators, which push air directly into the lungs through a tube or mask using positive pressure, an iron lung works by changing air pressure around the patient's body. The patient lies inside an airtight metal chamber with only the head remaining outside.
The machine then repeatedly lowers the air pressure inside the chamber. This causes the chest to expand naturally, drawing air into the lungs. The pressure then returns to normal. The chest relaxes, allowing air to flow back out. This cycle mimics normal breathing and can continue around the clock.
Iron lungs became obsolete eventually after polio vaccines and modern ventilators were developed.
The introduction of effective polio vaccines in the 1950s and 1960s dramatically reduced cases of paralytic polio worldwide.
The positive-pressure ventilators we use today are smaller, more portable, and better suited to intensive care. They deliver oxygen directly into the lungs, replacing bulky iron lungs.
Paul Alexander's life is more than a remarkable survival story. It serves as a reminder of the devastating impact infectious diseases once had before vaccines transformed public health.
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Amid earthquake rescue efforts, Venezuela has reported an outbreak of rat-borne hantavirus that has claimed three lives so far, according to the country's health ministry.
Three people with confirmed hantavirus infection died in the eastern state of Anzoátegui. Two other deaths—both involving health professionals in the state of Barinas—are still under investigation and are not linked to the Anzoátegui cases, the ministry said.
"We report the regrettable deaths of three patients in Anzoátegui with confirmed diagnoses of hantavirus," the ministry said in a statement.
The ministry added that there is "no scientific evidence of person-to-person transmission in our country," noting that the virus is primarily spread by rodents in rural and agricultural areas.
The fresh cases are reported barely two weeks after the World Health Organization (WHO) declared the end of the hantavirus outbreak linked to the MV Hondius luxury expedition ship, which infected 11 people and claimed three lives earlier this year.
According to the WHO, hantaviruses are zoonotic viruses that naturally infect rodents and are occasionally transmitted to humans. In humans, the infection can cause severe illness and may be fatal, although symptoms vary depending on the virus strain and geographic region.
The virus is primarily transmitted through contact with infected rodents or their urine, droppings, saliva, and, less commonly, through scratches or bites.
According to the CDC, symptoms can appear one to eight weeks after exposure, initially presenting fatigue, fever, and muscle aches. As the disease progresses, it can cause coughing, shortness of breath, and chest tightness as fluid accumulates in the lungs.
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A recent review published in JAMA Neurology highlights the often-overlooked neurologic complications of hantavirus infection. Hantaviruses cause two major clinical syndromes:
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Researchers from the US National Institutes of Health's (NIH) National Institute of Neurological Disorders and Stroke reviewed data from 811 patients infected with the Puumala strain of HFRS.
They found that 97% experienced headaches, 40% reported blurred vision, and 31% experienced vomiting. About 1% developed severe complications such as meningitis or encephalitis, while rare cases involved peripheral neuropathy or stroke.
Pituitary damage was identified as a significant complication of HFRS. It can lead to hormonal disorders weeks or even months after infection. These may include fatigue, adrenal insufficiency, diabetes insipidus, sexual dysfunction, amenorrhea, and symptoms of hypothyroidism.
The studies also reported cerebrospinal fluid abnormalities, sudden vision loss among hantavirus patients.
The long-term neurologic consequences of hantavirus remain poorly understood, according to Avindra Nath of the NIH. However, one study found that 20 years after Puumala infection, 78% of patients had persistent hypertension and 8% had chronic kidney disease.
Currently, there are no US Food and Drug Administration (FDA)-approved antiviral treatments or licensed vaccines for hantavirus infection, although several vaccine candidates are in preclinical trials. Several antiviral drugs—including favipiravir, molnupiravir, griffithsin, and ribavirin—have shown promise in early studies, but more research is needed, Nath said.
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Nearly all countries are overusing antibiotics—particularly those meant for specific conditions—fueling the global threat of antimicrobial resistance (AMR), according to a study published in The Lancet Public Health.
The study, led by researchers from the Universities of London and Oxford, found that 99% of countries overuse "Watch" antibiotics, while 60% continue to use antibiotics that the World Health Organization (WHO) advises should no longer be prescribed.
"Our findings show the world faces a double challenge – while some antibiotics are being overused, millions of people may still lack access to the medicines they need to treat their infections," said Aislinn Cook, lead author and Senior Research Fellow in Infectious Diseases Epidemiology at City St George's, University of London.
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The WHO groups antibiotics into three categories under its AWaRe framework:
In 2024, UN member states agreed that at least 70% of global antibiotic use should come from the Access group by 2030.
Researchers estimated that around 43 billion antibiotic courses were needed globally in 2019—roughly one course per person per year to treat bacterial infections. About 77% of these should have been Access antibiotics, suggesting the UN's 70% target is achievable.
However, analysis of antibiotic use across 67 countries revealed widespread inappropriate prescribing:
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The study also highlighted major disparities in antibiotic access. Researchers noted that low- and middle-income countries, which bear a higher burden of infectious diseases and antimicrobial resistance, often need greater access to specialized Watch and Reserve antibiotics.
Yet these medicines are used more frequently in high-income countries, pointing to unequal access rather than clinical need.
A separate study found that antibiotic-resistant bacteria are increasingly leaving children vulnerable to common infections.
The research, led by the Murdoch Children's Research Institute (MCRI) and covering 82 countries, found that antibiotic resistance increased across every region between 2004 and 2022, making many life-saving drugs used to treat common childhood infections less effective.
Published in the Journal of the American Medical Association, the study found that babies, children in intensive care, and those living in countries with limited healthcare resources are the most affected.
Researchers called for stronger national policies to curb unnecessary antibiotic prescribing while ensuring patients who genuinely need specialized antibiotics can access them.
They stressed that improving access will require coordinated action at both local and national levels. This includes:
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