On Thursday, Uganda confirmed an outbreak of the Ebola virus in its capital city Kampala, with the first confirmed patient dying from it a day before. As per the new developments, the officials are now preparing to deploy a trial vaccine to put an end to this outbreak.

Groups of scientists are working on the vaccine and deployment of more than 2,000 doses of a candidate vaccine against the Sudan strain of Ebola has been planned and confirmed by the Uganda Virus Research Institute. As per the World Health Organization (WHO), Uganda has access to 2,169 doses of trial vaccine. For now, however, there are no approved vaccines for the strain and officials are still investigating the source of the outbreak.

The WHO had also allocated $1 million from its contingency fund for emergencies to support quick action and contain the outbreak in the country.

Confirmed Case

On Wednesday, the Sudan strain of Ebola killed a nurse employed at Kampala's main referral hospital. It is after his death that Ebola was declared an outbreak in the country. Post-mortem samples too have confirmed the Sudan Ebola Virus Disease and at least 44 contacts of the deceased man have been listed for tracing. 30 of these are health workers.

Ebola is a highly infectious hemorrhagic fever, which is transmitted through contact with bodily fluids and tissue. Symptoms include headache, vomiting of blood, muscle pains and bleeding.

it was in the late 2022, when Uganda had last suffered an Ebola outbreak. It killed 55 of the 143 people who were infected and was declared over on January 11, 2023.

What Is Ebola Virus Disease?

As per the WHO, Ebola virus disease (EVD) is a rare but severe illness in humans and is often fatal. People can get infected with the virus if they touch an infected animal when preparing food, or touch body fluids of an infected person such as saliva, urine, faeces or semen, or things that have body fluids of an infected person like clothes or sheets.

How Does Transmission Work?

Ebola enters the body through cuts in the skin or when one is touching their eyes, nose or mouth. Early symptoms include fever, fatigue and headache.

It was first discovered in 1976 in two simultaneous outbreak, when in Nzara, South Sudan and other in Yambuku, Democratic Republic of Congo. The latter occurred near a village near the Ebola River, which is where it gets its name from.

It is highly infectious and transmissible disease, in fact, there have been cases of health-care workers who have frequently been infected while treating patients with suspected or confirmed Ebola. This occurs through close contact with patients when infection control precautions are not practiced strictly.

Cases of people conducted burial ceremonies, involving direct contact with the body of the deceased too can lead to the transmission of Ebola. Even after the long suffering and recovery, there is a possibility of sexual transmission. Pregnant women who get acute Ebola and recover may still carry the virus in their breastmilk, or in pregnancy related fluids and tissues.

Symptoms:

• feeling tired
• headache
• muscle and joint pain
• eye pain and vision problems
• weight gain
• belly pain and loss of appetite
• hair loss and skin problems
• trouble sleeping
• memory loss
• hearing loss
• depression and anxiety

In an early trial, scientists are testing the possibility if a vaccine could intercept pancreatic cancer, one of the deadliest cancers in the US, at an early stage and prevent it from becoming invasive.

The trial involves people who were considered at high risk of pancreatic cancer and already had small abnormalities, like cysts, in their pancreas.

The experimental vaccine, called mKRAS-VAX, is designed to train the immune system to recognise mutated KRAS proteins, which are found in most pancreatic ductal adenocarcinomas, the most common type of pancreatic cancer.

The findings, published in Cancer Discovery, offer an intriguing new approach in which instead of waiting for pancreatic cancer to appear and then treating it, researchers are attempting to intercept the disease at its earliest stages.

How Does The Vaccine Work?

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Pancreatic cancer often develops gradually from precursor lesions. Some of these lesions can contain mutations in the KRAS gene, which can drive the development of the disease.

The mKRAS-VAX vaccine contains synthetic peptides targeting six common KRAS mutations. The goal is to teach T cells to recognise cells carrying these abnormal proteins and destroy them before they progress into cancer.

Unlike traditional vaccines against infections, this is a therapeutic cancer vaccine, meaning it is designed to stimulate the patient's immune system against targets related to cancer.

Findings From The Early Trial

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The Phase 1 study involved 20 people who had either a family history or genetic predisposition to pancreatic cancer and had a pancreatic abnormality detected on imaging.

The vaccine produced mutant-KRAS-specific T-cell responses in 18 of the 20 participants, or 90%. These immune responses persisted for as long as two years. Researchers also saw an intriguing change in pancreatic cysts.

At a median follow-up of 16.5 months, 37.5% of participants experienced cyst reduction or complete resolution. Among a comparable group of unvaccinated people, the figure was 6.8%.

None of the vaccinated participants had developed pancreatic ductal adenocarcinoma during the study follow-up. However, this does not prove that the vaccine prevents pancreatic cancer.

The study was small, early-stage and primarily designed to examine safety and whether the vaccine could generate an immune response.

“We are very excited about these results,” pancreatic cancer vaccine researcher Elizabeth Jaffee said.

More About Pancreatic Cysts

The researchers are interested in whether vaccination could intervene during this window, before malignant cells are formed.

That is particularly significant because pancreatic cancer is notoriously difficult to detect early and remains one of the deadliest cancers.

The long-term ambition is to develop a vaccine to prevent pancreatic cancer but researchers are not there yet.

Jaffee described the field as “nascent” and said she is “cautiously optimistic,” while emphasising that these small Phase 1 studies are not designed to establish whether the vaccines improve survival or prevent cancer.

Larger Phase 2 studies will be needed to determine whether the early immune responses translate into meaningful clinical benefits.

Endometriosis is usually characterised by painful periods, chronic pelvic pain and fertility issues. But a new study suggests the condition may also be linked to a significantly higher risk of developing type 2 diabetes.

Researchers found that women with endometriosis had a 46% higher risk of type 2 diabetes compared with women without the condition.

The findings come from one of the largest studies to examine the relationship between the two conditions, adding a new dimension to the adverse effects of endometriosis.

What Did The Study Find?

Also read: 'My Periods Are Painful' Is Not Always Normal: When Could It Be A Sign of Endometriosis?

Researchers studied health records from nearly 3 million women in the Utah Population Database, covering the period from 1996 to 2021. Almost 100,000 women were diagnosed with endometriosis.

After accounting for factors including age, race and body mass index, women with endometriosis were found to have a 46% greater risk of developing type 2 diabetes than women without the condition. The researchers also found that the association differed depending on the type of endometriosis.

Additionally, the risk of type 2 diabetes was higher across several subtypes, including superficial peritoneal, ovarian and deep infiltrating endometriosis.

The strongest association was seen in women with endometriosis outside the usual pelvic sites, where the risk was about twice as high. Adenomyosis was also associated with an increased risk.

Why Could The Two Disorders Be Connected?

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Chronic inflammation could be the reason why the two disorders could be connected. Endometriosis is an inflammatory disease in which tissue resembling the lining of the uterus grows outside the uterus.

Persistent inflammation can affect several systems in the body, while inflammation and poor insulin sensitivity could lead to type 2 diabetes.

“Previous studies largely evaluated endometriosis as a single condition and generally reported little or no overall association with type 2 diabetes,” said Fuzak Nunziato, lead author of the study. “Our findings add to a growing understanding that endometriosis may affect more than reproductive health alone.”

Despite the strong observation, it is to be noted that study found an association, meaning women with endometriosis were more likely to develop type 2 diabetes. It does not prove that endometriosis directly causes type 2 diabetes.

The study was also retrospective, meaning researchers looked back at archival health records rather than assigning participants to groups and studying them prospectively.

A large prospective research published in 2021 found no overall significant increase in type 2 diabetes among women with laparoscopically confirmed endometriosis, although it did find modestly higher risks among certain groups, including women who were not obese.

The association was particularly notable among premenopausal women and women without obesity - groups that are not normally not considered to be at the highest risk for type 2 diabetes.

If further research solidifies the the link, researchers say women with endometriosis could potentially benefit from greater awareness of metabolic health and earlier identification of diabetes risk.

A one-time gene-editing treatment has been reported to lower bad cholesterol (LDL) by as much as 62% in an early clinical trial, raising hopes that high cholesterol could one day be treated without everyday pills.

The experimental treatment, VERVE-102, is designed to make a long-term genetic change in the liver. Researchers say it could eventually offer a new way of managing high cholesterol, although it is still years away from standard use. The latest results have been described as an “extremely exciting milestone” by researchers.

How Does The One-Time Treatment Work?

VERVE-102 targets a gene called PCSK9, which plays an important role in controlling how much LDL cholesterol circulates in the bloodstream.

The treatment uses base editing, a form of gene editing, to switch off the PCSK9 gene in liver cells. PCSK9 reduces the liver’s ability to remove LDL cholesterol from the blood.

By permanently disabling the gene, researchers hope to reproduce the effect seen in people who naturally have PCSK9 variants that keep their cholesterol low and their risk of coronary heart disease reduced.

The treatment is delivered through a single intravenous infusion containing the gene-editing machinery packaged inside a lipid nanoparticle.

Also read: How To Read Your Blood Test Results: A Simple Guide To What Your Numbers Mean

What Did The Trial Find?

The Phase 1b Heart-2 trial involved 35 adults with either heterozygous familial hypercholesterolaemia, an inherited condition that leads to high cholesterol, or premature coronary artery disease. Participants received a single infusion at different doses.

At the highest dose tested, LDL cholesterol fell by an average of 62%, while PCSK9 levels fell by as much as 88%. The reductions sustained during follow-up, with some being observed for up to 18 months.

The study was published in the New England Journal of Medicine, making the findings particularly notable because they provide the first clinical evidence that this type of in-body gene editing can produce a substantial and potentially durable cholesterol reduction.

Also read: Stopping Statins After 75 May Not Raise Death Risk In Low-Risk Adults: The Lancet Study

Could It Replace Statins?

The clinical trial was small and still early-stage. It was designed to examine safety and whether the treatment produces the expected biological effect, not to prove that VERVE-102 prevents heart attacks or strokes by lowering cholesterol. Researchers also need to understand the consequences of permanently altering PCSK9 over many years.

The trial did not report any serious adverse events related to the treatment or dose-limiting toxicities, although some participants experienced fatigue and other reactions.

Dr Riyaz Patel, a cardiologist at Barts Health NHS Trust and professor at University College London, said the early results provide encouraging evidence that PCSK9 base editing could eventually offer “substantial and durable” LDL reduction with a one-time treatment.

Statins and other cholesterol-reducing medicines generally require regular, continued treatment. VERVE-102 is attempting to change the liver’s system of regulating cholesterol.

That could be particularly useful for people who struggle to take medication consistently or whose cholesterol remains dangerously high despite existing treatments.

Despite the promising results, calling VERVE-102 a 'cure' for high cholesterol would be premature. Eli Lilly plans to begin a Phase 2 trial by the end of 2026, which should provide more information about the treatment’s safety, effectiveness and durability.