Beyond the Cruise Ship: Why Nigeria May Not Be Ready for the Next Virus Threat
Korede Abdullah 
LAGOS, Nigeria – When a deadly hantavirus outbreak aboard the cruise ship MV Hondius killed at least three passengers and left several others infected during an international voyage, global health authorities moved quickly to contain what could have become a wider cross-border emergency. But far beyond the quarantined vessel, the outbreak has revived urgent questions for countries like Nigeria: how prepared are fragile health systems for the next unfamiliar disease threat in an era of rapid global travel, weak surveillance and recurring outbreaks? The outbreak aboard the MV Hondius involved passengers and crew from 28 countries travelling from Ushuaia, Argentina, towards Cape Verde and the Canary Islands. Health authorities said the movement of passengers across different ports complicated contact tracing efforts, raising concerns about how quickly rare infections can spread through modern transport networks.In this report with Korede Abdullah, experts say the incident highlights the growing vulnerability of countries with overstretched public health systems, particularly in Africa, where surveillance gaps and underfunded laboratories continue to challenge outbreak preparedness.
According to the World Health Organization, hantaviruses are primarily carried by rodents and transmitted to humans through contact with infected urine, droppings or saliva. Infection often occurs when contaminated dust particles become airborne and are inhaled.
In severe cases, especially in the Americas, hantavirus can trigger hantavirus cardiopulmonary syndrome — a life-threatening condition with fatality rates that can reach 50 percent.
Although most strains do not spread between humans, health authorities warn that the Andes strain has shown limited human-to-human transmission among close contacts, increasing concerns during outbreaks in confined environments such as ships, camps and overcrowded facilities.
By May 8, health authorities had confirmed eight infections linked to the cruise outbreak, including three deaths. The outbreak prompted quarantine measures and international monitoring operations involving passengers from more than 20 countries.
Tedros Adhanom Ghebreyesus described the response as a demonstration of coordinated global outbreak control.
“The risk assessment was held. The protocols worked. Science and solidarity operate in coordination, as they must,” he said.
Nigeria Moves to Calm Public Fears
In Nigeria, the outbreak has triggered renewed discussions around disease preparedness and border surveillance.
The Nigeria Centre for Disease Control and Prevention said the country has not recorded any case of hantavirus infection but confirmed that surveillance has been heightened following the international outbreak.
Director-General Jide Idris reassured Nigerians that the immediate risk remains low.
“At this time, there is no evidence of hantavirus cases in Nigeria,” he said.
However, he cautioned that global movement of people means no country can afford complacency.
Dr Idris explained that hantavirus spreads mainly through exposure to infected rodents and contaminated environments, especially where sanitation conditions are poor.
“While some forms of Hantavirus infection can cause severe illness, the disease remains relatively rare,” he said.
He advised Nigerians to prioritise hygiene, proper food storage, waste disposal and rodent control as preventive measures against potential exposure.
‘When You Stir Up Dust’
For veteran virologist Oyewale Tomori, the hantavirus outbreak is another warning sign that emerging diseases remain a constant threat in an interconnected world.
Speaking in an exclusive interview with Africa Health Report, Tomori explained that hantavirus infections are not entirely foreign to Africa.
He noted that rodent-borne strains have been identified in regions including South Africa and Senegal, while studies have shown evidence of antibodies linked to related strains in Nigeria.
“When you stir up dust, this becomes like aerosols carrying the virus, and then people get infected,” he explained, describing how dried rodent urine and faeces can spread the infection through the air.
Tomori warned that certain strains can rapidly damage the lungs or kidneys, depending on the variant involved.
“The patient becomes unable to breathe, the lungs become congested, and many people may die from it,” he said.
He compared hantavirus with Lassa fever, another rodent-borne disease endemic in Nigeria, but noted important differences.
While Lassa fever can affect multiple organs, hantavirus strains often target either the lungs or kidneys, making diagnosis more difficult in settings with limited laboratory capacity.
Nigeria’s Preparedness Under Scrutiny
Despite official reassurances, Tomori questioned whether Nigeria’s health system is truly prepared to detect and contain an imported hantavirus case.
Using a classroom analogy, he cast doubt on repeated claims of readiness.
“If a student says, ‘I have read and read all night,’ you will only know the preparation when the result comes,” he said.
He pointed to Nigeria’s decades-long struggle with Lassa fever as evidence that preparedness gaps remain unresolved.
According to him, the country records roughly 10,000 suspected Lassa fever cases annually, yet only about 1,000 are laboratory confirmed.
“If we were truly prepared, we should be able to provide information about the remaining 9,000 cases,” he said.
Until Nigeria can explain what illnesses affect thousands of unconfirmed patients each year, he argued, claims of preparedness remain difficult to defend.
“If we cannot prepare for a disease we have known for nearly 60 years, how can we prepare for one we do not know?” he asked.
Lessons from COVID-19
For many public health experts, the hantavirus scare is less about the disease itself and more about what it reveals regarding fragile health systems.
Tomori said Nigeria must move away from reactive emergency responses and adopt continuous preparedness strategies rooted in surveillance, diagnostics and public education.
“That is preparedness—not waiting until the disease catches us and then running helter-skelter,” he said.
He criticised the country’s fragmented laboratory systems, arguing that many facilities remain designed to respond to specific diseases rather than broader diagnostic threats.
“You do not set up laboratories for one disease; you set up laboratories to diagnose diseases in general,” he added.
Tomori lamented that several laboratories established during the COVID-19 pandemic have since deteriorated because of poor maintenance, shortages of reagents and inconsistent funding.
Restoring and upgrading such facilities, he argued, would strengthen Nigeria’s ability to detect future outbreaks before they escalate.
Officials Call for Greater Vigilance
Public health authorities are also warning against complacency.
A senior official with the Sector-Wide Coordinating Office–Programme Management Unit under the Federal Ministry of Health and Social Welfare, Dr Bakare Lawal, said Nigeria must strengthen surveillance and emergency response systems against future disease threats.
“The absence of confirmed cases in Nigeria should not lead to complacency,” he said.
“Preparedness is the cornerstone of effective public health response.”
Lawal noted that rodent infestation, poor sanitation and weak waste management continue to create favourable conditions for zoonotic diseases to emerge and spread.
He called for stronger coordination between health authorities and international partners, including the World Health Organization, alongside increased investment in laboratories, border screening and public awareness campaigns.
“Rodent control and public awareness are critical to reducing the risk of hantavirus infection,” he said.
A Warning Beyond Hantavirus
Although hantavirus remains relatively rare, experts say the larger concern lies in the growing frequency of emerging infectious diseases worldwide.
From Ebola and cholera outbreaks to COVID-19 and Lassa fever, Nigeria’s health system has repeatedly faced pressure from epidemics that exposed deep structural weaknesses.
For Tomori, the lesson is simple: disease surveillance must become permanent, not seasonal.
“Surveillance is like breathing—you cannot take a holiday from it,” he said.
Health experts warn that without stronger laboratories, sustained investment and faster detection systems, future outbreaks may spread silently before authorities are able to respond.
For now, Nigeria has recorded no hantavirus case.
But as global travel continues to shrink borders between outbreaks and vulnerable populations, experts say preparedness can no longer depend on hope alone.
About the Author
Otamere Gladness 
Oluwafunbi Bello 
Hussaini Ibrahim 
Oluwatobi Adu