Health
ALERT: Dolphin Death in US Raises Concerns About Avian Flu Transmission
Bird-origin influenza virus confirmed as cause of bottlenose dolphin death in US, evidencing animal-to-human transmission.
United States: The most recent report unveils a distressing development in mammalian victims of avian influenza, with a bottlenose dolphin succumbing to the virus.
Further Details on the Discovery
Researchers from the University of Florida disclosed that the dolphin’s infection with the avian influenza virus was identified when the animal displayed visible signs of distress. Postmortem examination confirmed a high level of infection by the lethal strain of the virus, as reported by Dailymail.
The investigation into the virus itself revealed that it had affected the dolphin’s brain and lungs, showing resistance to current treatment drugs and potentially becoming even more resistant.
The timeline of events began in late 2021 and has continued into recent days, with wild birds and poultry in the US being primary targets of the rapidly spreading and highly contagious avian influenza viruses. However, the disease has recently expanded its reach to include cows, sheep, and bulls, allowing it to infect their body cells.
Further Insights from the Dolphin’s Necropsy
During the necropsy of the dolphin, researchers identified inflammation in a specific area of the brain or spinal cord.
Subsequent tests on the dolphin, which initially showed no signs of infections or diseases causing this specific inflammation, revealed the presence of the avian influenza antigen with RNA in its brain and lungs.
To be more precise, dolphin has been infected by a new strain of the avian influenza A (H5N1) which has been previously classified as the 2.3.4.4b H5, as Dailymail reported.
They found that the strain of the virus was present in the brain and the lungs. But, most of it was in the tissue that covers the brain and spinal cord.
In recent years, this particular form of bird flu caused by the 2.3.4.4b A(H5N1) group has been found to kill sea lions in Peru and Chile as well as Harbor and gray seals in New England and Canada.
Moreover, as per the experts, it is not very common for bird flu virus to affect seals or sea lions.
The 2.3.4.4b A(H5N1) avian virus has been observed to have a pattern of increased cases among the cetaceans, according to the scientists’ surveys.
Instances have been recorded in common dolphins captured in Peru, Wales, and England, two harbor porpoises in Sweden and England, and an Atlantic white-sided dolphin off the Canadian coast.
Health
Mpox Vaccine Breakthrough: Hope for Global Eradication
United States: The World Health Organization said on Friday that it had approved its first shot of vaccines against the mpox for use in adults, saying that it is a progression toward eradicating the disease in Africa.
More about the news
This approval is significant for organizations like Vaccines Alliance Gavi and UNICEF as they can now purchase it from Bavarian Nordic A/S.
Buying supplies is, however, a challenge since the product is manufactured by only one company.
According to WHO Director-General Tedros Adhanom Ghebreyesus, “This first (authorization) of a vaccine against mpox is an important step in our fight against the disease, both in the context of the current outbreaks in Africa and in future,” ABC News reported.
Previously, the UN health agency endorsed the two-dose mpox vaccine targeting the adult population who are 18 years and above. As for WHO, even though they did not advise the use of the vaccine for people below the age of 18, in particular cases, vaccines can be given to infants, children, and adolescents “in outbreak settings where the benefits of vaccination outweigh the potential risks.”
What more has the WHO recommended?
The WHO has also pointed out that it has been making an “access and allocation mechanism” to execute an even and fair distribution of mpox tests, treatments, and vaccines to the countries that need them most.
WHO has suggested that a dose could be split in the event that there is a shortage of the vaccine since one dose was proven to be 50 percent effective, and it is important to gather more information on the efficacy of the vaccine when used as a single shot.
About the vaccine
The Bavarian Nordic mpox vaccine was earlier named and approved by several developed countries in Europe and North America during the mpox outbreak in the year 2022.
In millions of adults, doses have proven that the vaccine assists in decelerating the virus distribution, but little is known about children.
Director-general of the Africa Center for Disease Control and Prevention said last month that seventy percent of the patients are below the age of 15 in Congo, where the outbreak is most severe, and children under the age of 15 are the majority of fatalities at 85 percent.
However, the WHO noted that more than 120 countries had confirmed more than 103 thousand legion cases of mpox since the start of the outbreak two years ago, ABC News reported.
As of Sunday, it recorded 723 people in well over a dozen countries in Africa have perished from the disease.
Health
9/11 Dust Exposure Linked to 14x Higher Dementia Risk
United States: The World Trade Center Health Program has been covering the medical expenses for cancer, respiratory ailments, mental health conditions, and musculoskeletal disorders linked to work at the site ever since it was established by an act of Congress and signed into law by President Barack Obama in 2011.
More around the news
Recently, researchers have started to look into cognitive impairment and dementia afflicting first responders at rates far higher than in the general population.
The study findings are urging healthcare providers to be more expressive regarding lobbying the World Trade Center Health Program, which is overseen by the CDC, to include dementia among the illnesses covered.
What more are the experts stating?
According to Benjamin Luft, the director of a program at Stony Brook University that cares for and monitors the health of first responders, “I’m hoping they will,” and “They have a systematic process in which they evaluate the scientific data. We’ve spent a huge amount of time and effort to establish that exposure to the neurotoxins and dust could cause these problems, and so should be eligible for coverage,” the Washington Post reported.
Lust has been working as a senior author of a study whose findings were published this summer and involved more than five thousand respondents who regularly undergone tests for over a decade.
They found that the ones with maximum exposure to the dust, as well as neurotoxic debris at the WTC, would have fourteen times more chances of becoming infected with dementia before the age of 65.
As per Ray Dorsey, a professor of neurology at the University of Rochester, the small-sized ordinary dust particles, which are termed fine particulate matter, could enter the nose and reach the brain to cause damage, the Washington Post reported.
However, as Dorsey said, “The nose is the front door to our brain,” and “Dust and chemicals set up shop in the small area of our brain, then spread to the parts of the brain important for memory.”
Health
FDA Approves Controversial Childhood Obesity Drug
United States: A drug has recently received approval for the treatment of obesity in adults and teenagers. It has been proven to be efficient for kids starting from the age of six when taken together with the necessary lifestyle changes – a new study found.
More about the news
A medication called liraglutide, used in adults with obesity, reduced body mass, attenuated weight gain, and enhanced favorable biomarkers in children aged between six and eleven years, research reported in a medical conference on Tuesday, and to the New England Journal of Medicine, ABC News reported.
Following the trial, the company that manufactures the drug, Novo Nordisk, has sought permission from the US authorities to apply the medication in children in that age bracket, the spokesperson said on Tuesday.
Should the medication be approved, it would be the first treatment for the kind of obesity experienced by over 20 percent of kids in the age group of 6 through 11 in the United States, according to the US CDC.
What do the study results show?
According to Dr. Claudia Fox, a pediatric obesity expert at the University of Minnesota, who led the study, “To date, children have had virtually no options for treating obesity,” and “They have been told to ‘try harder’ with diet and exercise,” ABC News reported.
Like most drugs with antiemetic properties, side effects include gastrointestinal effects in those administered the drug, including nausea, vomiting, and diarrhea, among others.
However, physicians and parents would have to research those risks and the absence of knowledge about the safety of employing such drugs in young children.
According to Dr. Melissa Crocker, a pediatric obesity specialist at Boston Children’s Hospital, “Having a medication for that age group, if approved, would be a really nice tool to have, but we’re also going to have to be careful about how widely we start using it,” ABC News reported.
“And I would answer that differently at six than I would at 11,” she added.
About Liraglutide
Liraglutide belongs to a class of drugs known as GLP-1s, which currently boast some of the biggest-selling drugs in the world, such as Wegovy and Mounjaro.
The medications make them resemble hormones that control hunger, feelings of being full or satiated, and digestion. Although this drug is given as a daily injection, it has been approved under the name of Victoza as a treatment for diabetes in adults and in children that are at least ten years of age and for Saxenda under the treatment of obesity affecting adults and children aged between 12 to 17 years.
The new study, also funded by Novo Nordisk, enrolled 82 children with a mean age of 10 and a baseline weight of 70kgs or 154. 2 pounds. In this sample, the average starting BMI was 31, categorizing the childhood population as obese or overweight.
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