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.

Potential Risks of TTTS

If left untreated, TTTS can have devastating consequences. Medical research indicates that:

• 90% of the cases of untreated TTTS lead to loss of one or both twins.
• Despite treatment, only a 70% survival rate for both twins is assured.
• Severe forms can result in preterm labor, cardiac failure in the recipient twin, and organ failure in the donor twin.
• Complications in long-term survivors include neurological damage and developmental delay in surviving infants.

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.

Why Identical Twin Pregnancies Are More Complicated

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.

Other Twin Pregnancy Health Risks

Twin pregnancies, even without the presence of TTTS, entail a variety of health risks to the mother as well as infants:

1. Premature Birth

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.

2. Gestational Hypertension and Preeclampsia

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.

3. Anemia

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.

4. Birth Defects

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.

5. Amniotic Fluid Imbalances

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.

6. Postpartum Hemorrhage

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.

Two Indian nationals onboard the hantavirus-hit MV Hondius cruise ship are healthy and unsymptomatic, the Embassy of India in Madrid said on May 10.

The Dutch-flagged vessel MV Hondius, with more than 90 people, including two Indian Crew members, arrived in Spain's Canary Islands on May 10.

They have been medically evacuated to the Netherlands, the embassy said.

"The 2 Indian nationals are healthy and asymptomatic. As informed by the Spanish National Center for Emergency Monitoring and Coordination (CENEM), the 2 Indian nationals who were travelling as crew members have been evacuated to the Netherlands, where they will be quarantined as per relevant health safety protocol," it said, in a statement.

While the residents of the Canary Islands had voiced concerns that its arrival could pose a potential health risk, the Spanish government, in coordination with the World Health Organization (WHO), agreed to allow passengers to disembark in the Canary Islands this weekend. The ship had travelled from Cape Verde, where three people were evacuated earlier due to illness.

All the passengers onboard disembarked from the ship in accordance with the protocol established by the WHO and the Spanish authorities.

"The Ambassador is in close contact with the Spanish authorities and the 2 Indian nationals (crew members) and is regularly monitoring the situation to assure the well-being and safety of the Indian nationals," the statement further added.

How Were The Passengers Evacuated?

As per the World Health Organization (WHO), the MV Hondius had six passengers with confirmed cases of hantavirus and two with suspected cases.

Three of those people have died, officials said, including two who died while aboard the ship.

An image of passengers disembarking from the ship on Sunday showed people dressed in personal protective equipment being taken to shore aboard a small boat, NBC News reported.

The first plane carrying passengers departed Tenerife for the Spanish capital Madrid shortly afterward.

Earlier, Dr. Maria Van Kerkhove, the WHO’s head of epidemic and pandemic preparedness, said that after being brought to shore, passengers will be kept cordoned off from the public and taken to repatriation flights.

In their home countries, many will be taken onward to isolation facilities. Van Kerkhove said that the WHO is recommending “active monitoring and follow-up” for all passengers and crew for 42 days from their “last point of exposure” to a confirmed case.

Speaking to reporters in Tenerife on Sunday, Monica Garcia, Spain’s Minister of Health, said that all passengers on the ship continue to be “asymptomatic.”

Garcia said passengers from the Netherlands would be the next group to leave the vessel, with their plane also carrying German, Belgian, and Greek passengers, as well as part of the crew.

Once ashore, the passengers were expected to be transferred onto buses and taken to the local airport. Passengers from Turkey, France, ⁠the UK, and the US will then be evacuated, followed by six people from “Australia, New Zealand and Asia,” she said, as part of the last flight planned for Monday.

Also read: Hantavirus Outbreak: How MV Hondius Passengers Will Be Screened And Evacuated

WHO, CDC, ECDC Teams Monitoring Arrivals

In its latest briefing, the UN health body said emergency response teams, including experts from the Netherlands and the European Centre for Disease Prevention and Control (ECDC), are coordinating efforts to manage the situation and assess all passengers and crew upon arrival.

A WHO official is currently on board alongside two Dutch healthcare workers and an ECDC expert.

WHO Technical Officer Anais Legand said health teams will review the exposure history of every passenger and crew member to determine who may face a higher risk of infection.

Read More: WHO Says 6-Week Hantavirus Incubation Raises Concern, But No Epidemic Risk

Passengers will also be screened for symptoms such as fever, fatigue, or signs of illness.

The US Centers for Disease Control and Prevention (CDC) said it plans to evacuate American passengers aboard the ship on a US government medical repatriation flight to Omaha, Nebraska.

The ongoing outbreak of hantavirus, a rodent-borne disease, among passengers aboard the luxury cruise ship MV Hondius has been linked to climate change, according to health experts.

So far, the outbreak has affected only people connected to the cruise ship, with eight reported cases, including three deaths. Six cases have been confirmed to be caused by the Andes strain of hantavirus.

The disease is expected to result in more cases as public health officials across 12 countries — including the United States, United Kingdom, Spain, and the Netherlands — continue contact tracing and screening efforts. In addition, the disease’s incubation period, which can last several weeks, may make screening more difficult.

According to the World Health Organization, an elderly Dutch couple may have brought the virus aboard after possibly contracting it through rodent exposure during a bird-watching tour near a landfill in Ushuaia, days before the ship departed from Argentina. Both the husband and wife later died.

Hantavirus Outbreak: Why It May be Linked To Climate Change

Experts have blamed climate change and habitat destruction for the rise in cases of the disease, which is usually caused by exposure to the urine or feces of infected rodents.

Rising temperatures, changing rainfall patterns, and habitat destruction are driving rodents closer to human populations, increasing the risk of hantavirus transmission through contaminated urine, droppings, or saliva.

“Climate change and rodents are closely linked, particularly because global warming creates conditions that favor the spread and survival of many rodent species, including rats. Rising temperatures make previously colder regions more suitable for rodents, allowing them to expand their geographical range into areas where they were once less common,” said Dr. Rajeev Jayadevan, convenor of the IMA research cell, in a statement to HealthandMe.

In general, colder regions tend to have fewer rats, but warming temperatures are changing that pattern.

“Increasing human interaction with wild environments, habitat destruction, the establishment of small urbanizations in rural areas, and the effects of climate change contribute to the appearance of cases outside historically endemic areas,” Argentina’s health ministry said in a statement.

Dr. Jayadevan added that higher temperatures can also make rodent reproductive cycles more efficient.

“Since rodents are mammals, warmer weather may allow them to reproduce more frequently within a year, leading to larger populations over time. Even a small increase in reproductive cycles can significantly boost rodent numbers on a community scale, especially when food supplies are abundant,” he said.

Also read: Hantavirus: Israel Confirms 1st Case as UK, Spain Probe Suspected Infections; Should You Be Worried?

Hantavirus: Flooding and Urbanization Raising Risks

Climate change also contributes to extreme weather events such as flooding, which can further increase human-rodent interaction.

Notably, floods may destroy crops and disrupt natural food sources, forcing rodents to migrate into homes and urban areas in search of food and shelter. This closer contact between humans and rodents can increase the risk of rodent-borne diseases spreading.

Dr. Ishwar Gilada, an infectious disease expert based in Mumbai, said that climate change, flooding, overcrowding, poor sanitation, rapid urbanization, and ecological disruption can all increase the risk of zoonotic infections, including hantavirus.

“Floods and heavy rainfall often force rodents into human settlements, while garbage accumulation, slums, warehouses, and poorly planned urban growth create ideal conditions for rodent breeding and human exposure,” Dr. Gilada said.

These conditions increase the likelihood of contact with contaminated urine or droppings.

Read More: Donald Trump Says Hantavirus Is 'Under Control'; Questions Grow Over CDC Research Cuts

‘One Health’ Approach Key to Future Preparedness

Dr. Gilada also highlighted the growing importance of the “One Health” approach, which recognizes the close connection between human, animal, and environmental health.

“Although hantavirus remains uncommon in India and is not currently considered a major public health threat, the broader lesson is the importance of long-term preparedness through improved sanitation, rodent control, environmental management, and stronger disease surveillance systems,” he said.

The MV Hondius cruise ship, hit by an outbreak of hantavirus, is expected to reach the Canary Islands on May 10.

The vessel is set to dock near Tenerife, where residents have voiced concerns that its arrival could pose a potential health risk.

The Spanish government, in coordination with the World Health Organization (WHO), has agreed to allow passengers to disembark in the Canary Islands this weekend. The ship had travelled from Cape Verde, where three people were evacuated earlier due to illness.

According to the WHO, none of the passengers currently on board are showing symptoms of hantavirus.

Spain Issues Quarantine Measures

Despite the absence of symptoms among current passengers, Spain’s Health Ministry has announced strict quarantine protocols.

“All people considered contacts — those who remained on the ship between April 1 and May 10, or were in contact with a confirmed case — must undergo mandatory quarantine at the Central Hospital of the Gómez Ulla Defense in Madrid,” the ministry said.

Passengers will remain in individual rooms with no visitors allowed.

“During this period, they will undergo a PCR test upon arrival and another seven days later,” the ministry added.

Authorities will also carry out active surveillance, including twice-daily temperature checks to identify symptoms early.

If a laboratory test is positive by the National Microbiology Center, the patient will become a confirmed case and will be admitted to a High Level Isolation and Treatment Unit (UATAN) until clinical recovery.

WHO, CDC, ECDC Teams Monitoring Arrivals

According to media reports, more than 90 people from 23 nationalities remain aboard the Dutch-flagged MV Hondius. This includes: 38 Filipinos, 23 Britons, 17 Americans, 2 Indians and 14 Spaniards.

The 14 Spanish passengers will be transferred to Gómez Ulla Hospital in Madrid, where they will undergo a 45-day quarantine. Crew members from other countries will be repatriated to their respective nations.

WHO said it has developed and shared technical guidance documents in support of countries affected by the event, including covering management of the event on the ship, investigation of cases, disembarkation and management of returning passengers and crew members.

In its latest briefing, the UN health body said emergency response teams, including experts from the Netherlands and the European Centre for Disease Prevention and Control (ECDC), are coordinating efforts to manage the situation and assess all passengers and crew upon arrival.

A WHO official is currently on board alongside two Dutch healthcare workers and an ECDC expert.

WHO Technical Officer Anais Legand said health teams will review the exposure history of every passenger and crew member to determine who may face a higher risk of infection.

Passengers will also be screened for symptoms such as fever, fatigue, or signs of illness.

The US Centers for Disease Control and Prevention (CDC) said it plans to evacuate American passengers aboard the ship on a US government medical repatriation flight to Omaha, Nebraska.

Confirmed Andes Virus Cases

The WHO confirmed that six cases have tested positive for Andes virus, which can spread from person to person, through PCR testing.

The ship had 147 passengers and crew members on board when the outbreak was first reported on May 2, while another 34 people had already left the vessel.

Also read: Hantavirus: Israel Confirms 1st Case as UK, Spain Probe Suspected Infections; Should You Be Worried?

Four patients remain hospitalized in South Africa, the Netherlands, and Switzerland. A suspected case transferred to Germany later tested negative.

Contact Tracing Underway

Health authorities said contact tracing efforts will focus on identifying and assessing everyone who may have been exposed on board, particularly those who had close contact with confirmed or suspected cases.

Officials are evaluating several factors, including the incubation period, infectious stage of the virus, and overall risk profiles.

“You want to understand whether this person might be more likely to be sick,” Legand explained. Currently, there is no treatment or vaccine available for hantavirus.

What Is Hantavirus?

Read More: WHO Says 6-Week Hantavirus Incubation Raises Concern, But No Epidemic Risk

Hantavirus is primarily transmitted through contact with infected rodents or exposure to their urine, droppings, and saliva, though rare cases of person-to-person transmission have also been reported.

While hantavirus carries a mortality rate of up to 40 percent, the WHO stated that the overall global risk remains low.

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.