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After being exposed, how long does it take to contract the Hantavirus?

contract the Hantavirus

Health authorities around the world are continuing to monitor a rare hantavirus outbreak linked to the expedition cruise ship MV Hondius, as new details emerge about the illness, its transmission, and the potential risks to passengers and crew.

The outbreak has already claimed the lives of three passengers and left several others ill, drawing international attention to a virus that many people know little about. Medical experts say the situation, while serious, remains relatively contained and does not currently pose a major threat to the general public. Still, the incident has sparked renewed concern over how hantavirus spreads, how long symptoms can take to appear, and why the Andes strain identified aboard the ship is particularly significant.

The Dutch-flagged vessel, operated by Oceanwide Expeditions, departed from Argentina in early April for an Antarctic-themed voyage before reports of illness began surfacing among passengers and crew. Since then, health officials in multiple countries have coordinated emergency response measures as the ship continued its journey through the Atlantic.

Three Deaths Confirmed as Investigation Continues

Authorities have confirmed that three passengers connected to the cruise died after developing symptoms associated with hantavirus infection. Several additional individuals were also reported sick, prompting medical evacuations and emergency assessments as the ship approached waters near Cape Verde.

According to international health officials, at least eight confirmed or suspected cases of hantavirus have been identified in connection with the voyage. Patients tested positive for the Andes strain of the virus, a rare subtype primarily found in South America.

The outbreak has led to growing concern because the Andes virus differs from most other hantaviruses in one important way: it is the only known strain capable of limited human-to-human transmission under certain circumstances.

Medical teams and epidemiologists are now conducting contact tracing to determine how exposure occurred and whether infections happened through environmental contamination, direct contact, or close interaction between passengers.

Understanding Hantavirus and How It Spreads

Hantavirus refers to a family of viruses typically carried by rodents. Humans generally become infected after inhaling particles contaminated with rodent urine, saliva, or droppings.

Experts say transmission most often occurs in enclosed spaces where infected rodent waste becomes airborne. Rural cabins, poorly ventilated buildings, campsites, and storage facilities are among the environments most commonly associated with exposure.

Kari Moore Debbink, a teaching professor in molecular microbiology and immunology at the Johns Hopkins Bloomberg School of Public Health, explained that there are more than 20 different hantavirus strains worldwide.

Most hantaviruses do not spread easily between humans. However, the Andes strain — identified in this outbreak — has shown evidence of human-to-human transmission through close contact involving respiratory secretions or bodily fluids.

Scientists are still working to determine exactly how passengers aboard the ship contracted the virus. One theory is that exposure may have occurred during land excursions in South America, where the Andes strain naturally circulates among rodent populations.

Another possibility is that infected rodents or contaminated areas aboard the vessel contributed to transmission.

Incubation Period Can Last Several Weeks

One of the biggest concerns surrounding hantavirus is the long incubation period, which can delay diagnosis and complicate containment efforts.

Experts say symptoms of the Andes virus can take anywhere from one to six weeks to appear after exposure. Some studies suggest the average incubation period is around 18 days, though cases involving person-to-person transmission have shown symptom onset ranging from 12 to 27 days.

Because symptoms can emerge weeks after infection, public health authorities are carefully monitoring passengers and crew even after they leave the ship.

The uncertainty surrounding incubation timelines has also complicated decisions about quarantine measures and medical observation protocols.

Health experts note that there is currently no universally established international protocol for monitoring individuals exposed to the Andes strain in cruise ship settings, making this outbreak particularly challenging for authorities.

Early Symptoms Often Resemble the Flu

Medical specialists warn that hantavirus symptoms initially resemble common viral illnesses, making early detection difficult.

Patients often experience:

  • High fever
  • Severe headaches
  • Muscle aches
  • Fatigue
  • Chills
  • Nausea

As the illness progresses, more serious respiratory symptoms can develop rapidly. These include coughing, chest tightness, shortness of breath, and fluid accumulation in the lungs.

In severe cases, patients may develop Hantavirus Pulmonary Syndrome (HPS), a potentially fatal condition that affects the lungs and breathing capacity.

Doctors say the disease can deteriorate quickly once respiratory complications begin.

According to the U.S. Centers for Disease Control and Prevention, hantavirus infections can carry mortality rates between 30% and 40% in advanced pulmonary cases.

Another form of hantavirus disease, known as Hemorrhagic Fever with Renal Syndrome (HFRS), primarily affects the kidneys and is more commonly associated with hantavirus strains found in Europe and Asia.

Why Experts Say the Public Risk Remains Low

Despite the alarming nature of the outbreak, infectious disease specialists stress that the risk to the wider public remains low.

Dr. William Schaffner, a preventive medicine expert at Vanderbilt University Medical Center, described the incident as a “localized and contained” health event.

Public health experts say several factors reduce the likelihood of a broader outbreak:

  • Hantavirus is relatively difficult to transmit compared to airborne viruses like influenza or COVID-19.
  • Human-to-human spread of the Andes strain appears limited and typically requires close contact.
  • The virus is not known to spread casually in public settings.
  • Authorities quickly isolated symptomatic individuals and initiated medical response measures.

The World Health Organization has also stated that there is currently no reason for travel restrictions or public panic.

Still, officials continue monitoring passengers closely because symptoms may not appear immediately.

South America Remains the Primary Risk Zone

Experts note that the Andes strain of hantavirus is found mainly in parts of Argentina and Chile, where certain rodent species naturally carry the virus.

People who work in rural settings, agriculture, forestry, or outdoor tourism activities are generally considered at higher risk of exposure.

Tourists participating in hiking expeditions, camping trips, or remote travel in affected regions can also face increased risk, particularly if they enter poorly ventilated shelters or areas contaminated by rodents.

In the United States, the most common hantavirus strain is the Sin Nombre virus, primarily found in the Southwest region.

Health officials emphasize that hantavirus infections remain rare overall, especially compared to more common respiratory diseases.

Cruise Industry Faces Renewed Health Scrutiny

The outbreak aboard the MV Hondius has once again placed global cruise operators under intense health scrutiny.

Since the COVID-19 pandemic, cruise lines have expanded disease monitoring systems and emergency response procedures. However, experts say rare infections like hantavirus present unique challenges because symptoms can appear long after exposure and are often mistaken for common illnesses in the early stages.

Oceanwide Expeditions has stated that it is cooperating fully with international health authorities and implementing precautionary measures aboard the ship.

Passengers continue to await further medical guidance as the vessel heads toward Spain’s Canary Islands.

Meanwhile, epidemiologists say the incident serves as a reminder of how quickly infectious diseases can emerge in international travel environments — especially when voyages involve remote destinations, wildlife exposure, and extended travel periods.

For now, health authorities say vigilance, rapid diagnosis, and continued monitoring remain the best tools for preventing further spread.

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Life

Heatwaves scorch England’s apples, starve cattle and cut grain yields

By George Mensah 5 min read

England’s summer heatwaves are pushing fruit growers, cattle farmers and grain producers into a season of shrinking harvests, spoiled crops and tough financial choices, with growers in Kent, Surrey and West Horsley all reporting damage that in some cases has cut yields by nearly half.

At Amsbury Farm near Maidstone, Kent, Clive Baxter manages roughly 200 acres (81 hectares) of fruit trees. He says the repeated spells of extreme heat this summer have hit nearly every part of his operation. “Everything is suffering now in the heatwaves,” Baxter said.

Bramley apples, a variety long associated with English cooking, are proving especially vulnerable. “Bramley apples are very susceptible to sunburn so we are spraying them with a clay substance that acts like suncream,” Baxter said. He explained that traditional English varieties, including Bramleys and Coxes, were never bred to withstand the kind of sustained heat the region has experienced this year.

The damage becomes severe once temperatures climb past a certain threshold. “Once the temperature gets to 30 degrees and above, if there is no wind, the juice starts to boil in the apples and cooks the fruit,” Baxter said. “When this happens it means the fruit is of no value at all.”

To protect what remains of the crop, Baxter’s team has started thinning the trees, deliberately removing some fruit so the rest has a better chance of surviving. He said the trees themselves are showing signs of strain. “So stressed” is how he described them, adding that the practice, while necessary, means lower yields and smaller apples overall.

Cattle farmers run out of grass

The heat is creating a different kind of pressure eighty miles away in Brockham, Surrey, where Nellie Budd raises 247 cows. For Budd, the central problem this summer has been simple: there is not enough food for the herd to eat.

“We have had 47 days now with no rain,” Budd said. “Grass normally is so resilient, once we cut it for hay or cut it for silage it will come back and we can continue grazing, but, this year, with the heat, there has been no let up.”

With pasture failing to regrow, Budd has started feeding her cattle hay that was meant to carry them through winter, a move that leaves her with a shortfall she will need to make up before the cold months arrive. The shortage is already changing the size of the animals she can bring to market.

“With limited food to eat, the carcasses are just not getting big enough which means they are not going to be the size for what we want because they are beef cattle,” Budd said.

Cutting the size of her herd is not something she is willing to consider, even as costs rise. “We have been putting an overlay in our grasslands to try and help but, this year, with no moisture in the ground, we couldn’t do anything,” she said. Reducing cattle numbers, she added, is not an option, because her family “could not afford to live” if she scaled back.

Budd said she is left hoping conditions change before next year’s growing season begins. “Everything is a gamble for farmers and we just hope weather patterns cause a wetter year next year,” she said.

Grain yields down by a third or more

Further west, at Woolgars Farm in West Horsley, arable farmer and contractor Peter Knight is currently harvesting around 2,000 acres (809 hectares), and the numbers coming in are worse than he expected. He traces the trouble back to the first heatwave in May, which struck right as his spring barley, a crop used mainly for brewing beer, needed steady moisture to establish itself.

“Spring barley, which is used for making beer, is planted in March and it has had very little rain on it since then,” Knight said. The timing compounded the damage. “The crops flower in early June but, at that time the heat puts it under stress, which means we immediately know the yield is going to be impacted,” he said.

Knight said the dry spell never really let up through the grain-filling period, the weeks when kernels normally bulk up in size and weight. Without rain during that window, the plants simply could not put on the growth needed for a strong harvest.

He is now watching a pattern repeat itself. “We are very worried because three out of the last five years we have had very similar weather patterns in terms of drought-like conditions and trying to manage our way through that is very difficult,” Knight said.

Unlike some fruit and vegetable operations, arable farms of this scale have few tools to fight back against drought. Knight said irrigating thousands of acres of grain is not realistic given the cost and infrastructure it would require. Instead, he has adjusted his methods where he can. “We are doing our best by trying to sow earlier in the spring and we are doing less cultivations which helps preserve moisture but this year the yield here is reduced by around 30-40% on what we would normally expect,” he said.

Knight said the consequences extend beyond his own farm. If the current weather pattern continues to disrupt arable output across the country, he expects Britain will need to lean more heavily on imported grain to make up the difference.

A season of adjustments across the industry

Baxter’s spraying regimen, Budd’s early dip into winter feed stores, and Knight’s earlier sowing and reduced cultivation all point to the same reality: farmers across different sectors are making real-time changes to how they operate, not waiting for the season to end before responding.

None of the three describe the heat as a one-off. Knight’s reference to three drought-affected years out of the last five suggests a pattern rather than an isolated bad summer, and Budd’s decision to protect her herd size despite the financial strain signals she expects to need that stock again once conditions improve.

For now, the fruit that survives will carry a higher cost of production, the cattle coming to market will run smaller than usual, and the grain harvest at Woolgars Farm will fall well short of a typical year. Whether next year brings the wetter conditions farmers are hoping for remains the open question hanging over the rest of the 2026 growing season.


Life

Vozinha’s world cup heroics earn him a sea slug named in his honour

By George Mensah 4 min read

Cape Verde goalkeeper Vozinha has picked up an unexpected honour after his run at the World Cup, with scientists naming a newly identified sea slug species after him.

The Cape Verde islanders pushed Argentina to extra time before falling 3-2, a result that capped a tournament run few had predicted for the small West African nation. Before that exit, Vozinha kept a clean sheet in a goalless draw against European champions Spain, a result that gave Cape Verde its first-ever point at a World Cup.

That performance changed his profile almost overnight. His Instagram following jumped from 50,000 to 17.4 million, a number that puts him ahead of NFL veteran Tom Brady in social media reach.

A New Species Named In His Honour

Biologist Jesus Ortea, a professor emeritus at the University of Oviedo, found the small red mollusc in the Caribbean and gave it the name Aldisa vozinha, tying it directly to the 40-year-old goalkeeper.

In his published report on the discovery, Ortea wrote that he wanted to mark Vozinha’s role at the tournament. He also pointed out a detail that made the choice feel deliberate rather than arbitrary: the slug’s red colouring mirrors the nickname of Spain’s national team, La Roja, the side against whom Vozinha delivered his best-remembered display.

“The red colour of the dedicated species is a reminder of his feat,” Ortea wrote.

A Scientist With A Football Habit

This isn’t the first time Ortea has mixed marine biology with football. At 75, he has built a pattern of naming new species after players who catch his attention during major tournaments.

He previously named a species discovered in Costa Rica after Keylor Navas, the goalkeeper who played for Costa Rica at several World Cups and spent time at Real Madrid, Paris Saint-Germain and Nottingham Forest.

Ortea also named a separate creature after Quini, the former Sporting Gijon striker, picking a species whose colours matched the club’s kit.

His connection to Cape Verde goes beyond this latest naming. Ortea received the country’s Medal of Merit in 2023 for his research in the waters surrounding the island nation, work that had already put him in contact with Cape Verdean officials before Vozinha’s World Cup run began.

A Breakthrough Run For Cape Verde

Cape Verde’s World Cup campaign stood out as one of the tournament’s more unexpected stories. A nation of roughly 500,000 people reached a stage most had not anticipated, and Vozinha’s saves against Spain became the moment that defined the run for many watching outside the country.

The draw with Spain secured a point that Cape Verde had never managed at a World Cup before that match. Reaching the knockout stage and taking Argentina to extra time added to a run that turned Vozinha into one of the tournament’s more recognisable figures, despite representing one of its smaller footballing nations.

His social media numbers reflect how quickly that recognition spread. Going from 50,000 followers to 17.4 million in the span of a single tournament put him among the most-followed athletes to emerge from this World Cup, regardless of how his side’s run ultimately ended.

Science Meets Sport

Ortea’s naming choices follow a consistent logic. Rather than picking names at random, he has tied each species to a detail about the player or club being honoured, whether through colour, geography, or timing. The Vozinha naming continues that approach, linking a mollusc found in the Caribbean to a goalkeeper who plays his football thousands of miles away in Africa and Europe.

Species names given in honour of public figures are not unusual in taxonomy, but Ortea’s specific focus on footballers gives his research a public profile that pure marine biology often doesn’t attract. Each naming tends to draw attention back to his broader work cataloguing new mollusc species, work that includes his research around Cape Verde’s coastline.

For Cape Verde, the timing adds another layer of recognition to a tournament that already delivered milestones the country had not reached before. Vozinha’s clean sheet against Spain and the near-miss against Argentina will likely remain the sporting highlights of the run, but the naming of Aldisa vozinha gives the goalkeeper a mark tied to the tournament that will outlast this particular World Cup cycle.

Ortea’s report on the discovery did not indicate whether he plans to name further species after players from this tournament, though his history suggests Vozinha may not be the last footballer to receive this kind of tribute.

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