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Can mosquitoes spread SARS-CoV-2?

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The answer is “no,” according to Dr. Daniel Markowski, technical advisor for the American Mosquito Control Association.

“There is no evidence that mosquitoes can acquire and transmit the SARS-CoV-2 virus,” he told MNT.

In order to understand the mechanisms that prevent mosquitoes from carrying and spreading the SARS-CoV-2 virus, Dr. Markowski explained it is important to understand how mosquitoes transmit virionsTrusted Source, or viral particles.

“Typically, the mosquito must first feed on an infected host, that is circulating enough virus in their blood to have some present in the small amount taken during a mosquito’s blood meal,” he explained.

“Secondly, the virus must survive the insect’s midgut, which has a host of immune responses similar to our own. Not only must they survive inside the mosquito’s midgut, they need to replicate and ultimately bind to receptor sites on the wall of the midgut and pass through that barrier into the mosquito’s body cavity,” Dr. Markowski added.

Once inside the body cavity, Dr. Markowski explained that the virus needs to get past the mosquito’s immune system and make its way into the insect’s salivary glands, all while continuing to replicate.

“Now with the next blood meal, they can be passed to a new host while the mosquito feeds,” he continued. “As you can see, it’s a fairly long and complex journey each virus makes to go from one host to the next via a mosquito bite. And not many viruses have evolved over the millennia to successfully complete that journey, which is why many viruses such as flu, coronavirus, and monkeypox are not mosquito-borne viruses.”

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In July 2022, a team of researchers including Dr. Stephen Higgs, associate vice president for research and director of the Biosecurity Research Institute at Kansas State University, published a studyTrusted Source that found that even under extreme conditions, the SARS-CoV-2 virus did not replicate in mosquitoes.

Because of this, the researchers stated, mosquitoes would be unable to transmit the virus to people even if the mosquito fed upon someone infected with the SARS-CoV-2 virus.

“We really did not expect that it would infect mosquitoes because, for whatever reason, coronaviruses just do not infect mosquitoes or other arthropods,” Dr. Higgs told us.

“What we did in our original paper was to inject SARS-CoV-2 into mosquitoes. We know that by using this approach you can sometimes infect a resistant mosquito with a virus that would not normally infect it. Even with that unnatural approach SARS-COV-2 did not infect and multiply in the mosquitoes,” he noted.

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Health

Ondo Resident Doctors Begin 14-Day Warning Strike

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Resident doctors at the University of Medical Sciences Teaching Hospital (UNIMEDTH) in Ondo State have initiated a 14-day warning strike, as confirmed by the National Association of Resident Doctors (NARD).

The strike action, led by the association’s President, John Matthew, highlights various grievances, notably the non-payment of seven months’ salaries to new members.

Matthew added that the strike also addresses the non-payment of palliative to House Officers since February, the failure to disburse the February Hazard Allowance despite prior assurances from the state government, and the ongoing shortage of staff due to resignations.

Matthew lamented the drastic decrease in resident doctors, citing a decrease from 150 doctors to a mere 26 in recent months.

In response to the situation, he urged management to prioritise the full payment of arrears owed to members, immediate payment of the February 2024 palliative to house officers, and prompt disbursement of the February hazard allowance.

The association further called for urgent measures to address the critical shortage of clinical manpower within the institution.

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Health

FG Okays N25bn Disbursement to Enhance Healthcare Delivery

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File photo of the Coordinating Minister of Health and Social Welfare, Ali Pate,

The Federal Government has greenlit the allocation of N25 billion to bolster the efforts of the National Primary Healthcare Development Agency (NPHCDA) and the National Health Insurance Authority (NHIA) in advancing healthcare accessibility and quality across Nigeria.

The Coordinating Minister of Health and Social Welfare, Ali Pate, made this known, stressing the steadfast commitment of the current administration towards revamping the healthcare system to achieve Universal Healthcare Coverage (UHC) for all Nigerians.

In a statement by Deworitshe Patricia, a spokesperson for the ministry, Pate emphasised that the government’s strategy for health sector transformation involves the implementation of a Sector Wide Approach (SWAp) and the Health Sector Renewal Investment Programme (NHSRIP).

Addressing the imperative for reforms in Nigeria’s primary healthcare delivery, Pate highlighted the significance of revising the Basic Healthcare Provision Fund (BHCPF) and its associated programmes.

Pate outlined the objectives of the revised guidelines, which include expanding healthcare services for underserved populations, particularly women and children, reducing maternal mortality rates, alleviating out-of-pocket healthcare expenses, and standardizing healthcare quality across primary healthcare facilities nationwide.

“The Ministry, in collaboration with development partners, is dedicated to ensuring equitable access to healthcare services for all Nigerians, with a special focus on vulnerable groups,” stated Pate. “Through initiatives like NHSRIP, we aspire to minimize the need for long-distance travel for medical care, thereby improving the overall health outcomes and well-being of our citizens.”

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Photos: Saudi Medical Team Make History, Separate Nigerian Conjoined Twins

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In a monumental achievement for medical science, a team of Saudi professionals at the King Abdullah Specialist Children’s Hospital has completed the separation surgery of Nigerian conjoined twins, Hassana and Husaina.

The directive for this historic achievement came from the Custodian of the Two Holy Mosques King Salman bin Abdulaziz Al-Saud and His Royal Highness Prince Mohammed bin Salman bin Abdulaziz Al-Saud, Crown Prince and Prime Minister, demonstrating the Kingdom’s commitment to advancing healthcare.

The complex procedure, initiated on Thursday morning, was the result of meticulous planning and execution by a dedicated team of 38 medical experts. This group included consultants, specialists, technicians, and nursing staff, all working in harmony to address shared areas in the lower abdomen, pelvis, lower spine, and lower spinal nerves of the twins.

The surgery, unfolding in nine carefully planned stages, lasted approximately 14 hours. Dr. Abdullah Al Rabeeah, Advisor at the Royal Court, Supervisor General of the King Salman Humanitarian Aid and Relief Center (KSrelief), and head of the medical team, expressed confidence in the success of the procedure, citing a noteworthy 70% success rate.

“This is a momentous occasion that showcases the Kingdom’s commitment to advancing medical science and providing compassionate healthcare globally,” he said.

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The successful separation of Hassana and Husaina commemorates the 60th operation conducted by the Saudi programme for separating conjoined twins. Over the past 34 years, this programme has offered care to 135 conjoined twins from 25 countries.

Dr. Al Rabeeah expressed heartfelt gratitude and appreciation to the Saudi leadership for their steadfast support of the programme.

He said, “The successful separation of Hassana and Husaina exemplifies the Kingdom’s dedication to humanitarian causes and its role as a leader in global healthcare.”

The Press Attaché at the Saudi embassy in Abuja, Mohammed Alsahabi, remarked on the accomplishment, stating, “This remarkable feat underscores the strong collaboration between Saudi Arabia and Nigeria in healthcare. We take pride in contributing to the improvement of these twins’ lives and their families.”

The separation of Hassana and Husaina represents not just a medical triumph but also serves as a symbol of hope for numerous individuals confronting similar challenges globally.

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