President Anura Kumara Dissanayake’s office said on Tuesday that members of the army, navy and air force would join a specialized task force responsible for identifying and eliminating mosquito breeding grounds across the country.

The move comes as health authorities reported nearly 50,000 dengue infections and 29 related deaths so far this year. While the figures remain below the country’s record 2017 outbreak, officials warned that the recent acceleration in case numbers poses a significant public health challenge.

Dengue is transmitted by the Aedes mosquito, a species recognized by its black-and-white striped legs and known to breed in stagnant water. The disease can cause high fever, severe headaches, nausea, vomiting and muscle pain, while severe cases may lead to internal bleeding and death.

In a statement, the president’s office said authorities would intensify enforcement measures against individuals and institutions found to be allowing mosquito breeding sites on their properties.

“Laws will also be strictly enforced against those allowing mosquito breeding on their premises, in addition to setting up the special military unit,” the statement said.

A nationwide cleanup campaign targeting stagnant water and other mosquito breeding areas is scheduled to begin on Wednesday.

Sri Lanka has recorded a sharp increase in infections since early June, including more than 1,000 cases reported in a single day this week, according to official health data.

Kapila Kannangara, head of the government’s dengue control unit, said both public and private hospitals were already facing mounting pressure from the surge in patients.

“Hospitals are already under pressure,” Kannangara told reporters in Colombo. “We don’t want to have a situation like the one we faced in 2017.”

The country’s worst dengue epidemic occurred in 2017, when authorities recorded approximately 186,000 infections and 440 deaths, overwhelming healthcare facilities and prompting emergency response measures.

Health officials attributed the latest increase in cases to a combination of monsoon rains, stagnant water left behind by recent flooding and poor waste management practices that have created favorable breeding conditions for mosquitoes.

The World Health Organization has previously warned that climate change is contributing to the faster spread and broader geographic reach of dengue and other mosquito-borne diseases, particularly in tropical and subtropical regions.

A first group of passengers, all Spanish nationals and none displaying symptoms of infection, disembarked from the ship into small boats as the vessel approached the Port of Granadilla in Tenerife, Spain’s health ministry said.

Spanish officials said the passengers would be transported in sealed military buses directly to Tenerife’s airport before being flown aboard a government aircraft to Madrid for hospital evaluation and quarantine measures.

Authorities said all passengers would undergo testing by Spanish health officials before onward transport. Foreign nationals are expected to be repatriated in stages using specially arranged flights coordinated by their respective governments rather than commercial air services.

The European Centre for Disease Prevention and Control, or ECDC, classified all passengers and crew as high-risk contacts as a precautionary measure in rapid scientific guidance issued late Saturday. The agency said symptomatic passengers should receive priority medical evaluation and testing upon arrival and may either remain isolated in Tenerife or be medically evacuated home depending on their condition.

Thirty crew members are expected to remain aboard the vessel, which will later sail to the Netherlands for disinfection operations, according to Spanish authorities.The ship departed waters off Cape Verde earlier this week after the World Health Organization and the European Union requested Spain coordinate the evacuation effort following confirmation of the outbreak.

WHO Director-General Tedros Adhanom Ghebreyesus arrived in Tenerife on Saturday alongside senior Spanish ministers to oversee preparations for the ship’s arrival and passenger transfer operations.The WHO said eight people aboard the vessel had fallen ill, including three fatalities involving a Dutch couple and a German national.

Six infections have been laboratory confirmed, while two additional cases remain under investigation.Hantavirus is primarily transmitted through exposure to infected rodents, though health officials say limited person-to-person transmission can occur in rare circumstances.

The WHO has assessed the risk to the wider global population as low while describing the threat to passengers and crew aboard the vessel as moderate.Spanish authorities said evacuation operations were expected to continue throughout the day under strict biosecurity protocols at Tenerife’s Port of Granadilla.