Monkeypox Fever: What Is It? Causes, Symptoms And Treatment, Explained

It’s just when we thought, coronavirus is reaching an endemic state, another viral infection Monkeypox is raising alarm, across the globe. This unusual occurrence of virus that was largely confined to central and western Africa, till a week back, is now being reported in 11 countries across Europe and North America and in Australia. The United States has also confirmed its first monkeypox case in a patient hospitalised in Massachusetts.

According to the Centers for Disease Control and Prevention (CDC) in 2021, two persons travelling from Nigeria to the US were diagnosed with this infection.

Monkeypox is mostly found in West and Central Africa, but in recent years cases have been seen in Europe, including the United Kingdom. However, those cases are usually associated with international travel or imported animals infected with pox, states the CDC.

The first case of monkeypox viral infection in humans was reported in 1970 in the Democratic Republic of the Congo, which otherwise infects simians. Infectious disease experts reveal that there have been only a few cases of monkeypox outside central and west Africa in the last 50 years. That’s why the sudden spurt of the infection in European regions has raised concerns.

The World Health Organisation (WHO) is keenly monitoring the outbreak of this viral fever. Further, it has been warned that the number of patients affected with monkeypox fever is expected to increase in the coming days.

Till now, no such case has been reported in India. However, in India, the National Centre for Disease Control and the Indian Council of Medical Research is closely watching the outbreak and the department has asked states to be vigilant. Renowned medical experts told the media that, there is no need to panic, as the potential of monkeypox fever is very less, besides being a self-limiting infection. Further, experts also stated that smallpox vaccination works against it, and can be immunologically speculated that certain people in India may be immune to monkeypox.

Read this article to know what is monkeypox fever, its causes, symptoms and treatment options available.

What Is Monkeypox?

Monkeypox is a viral zoonosis, a virus transmitted to humans from animals with symptoms related to smallpox, however, it is clinically less severe. With the elimination of smallpox in 1980 and following the ending of smallpox vaccination, monkeypox fever has emerged as the most vital orthopoxvirus for public health. Monkeypox mainly occurs in the rainforest regions of central and west Africa. Animal hosts include a wide variety of rodents and non-human primates.

Monkeypox virus is an enclosed double-stranded DNA virus, that belongs to the Orthopoxvirus genus of the Poxviridae family. Two unique genetic clades of the monkeypox virus are identified- the Central African (Congo Basin) clade and the West African clade. The Congo Basin clade has caused more serious diseases and is thought to be highly transmissible.

What Are Natural Hosts For Monkeypox Virus?

Several kinds of animal species have been identified as susceptible to the monkeypox virus, which includes rope squirrels, tree squirrels, Gambian pouched rats, dormice, non-human primates, and other species. However, it is still not clear about the history of the monkeypox virus and further studies are required to identify the exact source and how virus transmission is maintained in nature.

Symptoms Of Monkeypox

In humans, monkeypox is quite similar to smallpox, except for the enlargement of lymph nodes with monkeypox. Around 12 days of the incubation period, the infection starts with fever, headache, muscle aches, backache, swollen lymph nodes, feeling of discomfort and tiredness are common symptoms, Within 1 to 3 days, after developing a fever, the patient may see a popular rash (ie raised bumps), mostly seen on the face first, but at times initially on other regions of the body. The lesions happen through different stages, before crusting and falling off.

Key Facts Of Monkeypox:

• This is caused by the monkeypox virus, a member of the Orthopoxvirus genus in the family Poxviridae
• It is a viral zoonotic disease that develops mainly in tropical rainforest regions of Central and West Africa and is rarely distributed to other areas
• This viral infection usually shows clinically with fever, rash and swollen lymph nodes and may result in a range of medical conditions
• It is a self-limited disease with symptoms lasting from 2 to 4 weeks, severe cases can happen. The case-fatality ratio has been around 3-6%
• Monkeypox is transmitted to human beings via close contact with an infected person or animal or any material contaminated with the virus
• It spreads from one person to another by close contact with lesions, body fluids, respiratory droplets, and soiled materials like bedding
• Vaccines used to eradicate smallpox also offered protection against monkeypox. Newer vaccines have been developed and one of them has been approved for the prevention of monkeypox
• Antiviral medicine used for the treatment of smallpox has been also licensed for the treatment of monkeypox

How Long Does Monkeypox Last?

Monkeypox infection usually lasts for 2 to 4 weeks.

Is Monkeypox Fatal?

Human studies carried out in remote areas of central and west Africa have revealed case-fatality ratios of as high as 10%.

Treatment For Monkeypox

Currently, there is no treatment available for this viral infection. However, the smallpox vaccine has been found to lower the risk of monkeypox among previously vaccinated individuals. The Centres for Disease Control And Prevention is evaluating the possible role of smallpox vaccines as well as the therapeutic use of the antiviral drug cidofovir.

Prevention

Raising awareness of risk factors and educating people about effective steps they can take to lessen exposure to viruses is the key prevention strategy for monkeypox. Research is now underway to assess the viability and suitability of vaccination for the prevention and spread of monkeypox. 

 

This is only for your information, kindly take the advice of your doctor for medicines, exercises and so on.   

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Immune cells rewire, repair brain while we sleep

Researchers have found that immune cells called microglia, which play an important role in reorganising the connections between nerve cells, fighting infections, and repairing damage, are also primarily active while we sleep.

Microglia serve as the brain’s first responders, patrolling the brain and spinal cord and springing into action to stamp out infections or gobble up debris from dead cell tissue.

“This research shows that the signals in our brain that modulate the sleep and awake state also act as a switch that turns the immune system off and on,” said study lead author Ania Majewska, Professor at University of Rochester in the US.

In previous studies, Majewska’s lab has shown how microglia interact with synapses, the juncture where the axons of one neuron connects and communicates with its neighbours.

The microglia help maintain the health and function of the synapses and prune connections between nerve cells when they are no longer necessary for brain function.

For the findings, researchers conducted the study on mice.

The current study points to the role of norepinephrine, a neurotransmitter that signals arousal and stress in the central nervous system.

This chemical is present in low levels in the brain while we sleep, but when production ramps up it arouses our nerve cells, causing us to wake up and become alert.

The study showed that norepinephrine also acts on a specific receptor, the beta2 adrenergic receptor, which is expressed at high levels in microglia.

When this chemical is present in the brain, the microglia slip into a sort of hibernation.

The study, which employed an advanced imaging technology that allows researchers to observe activity in the living brain, showed that when mice were exposed to high levels of norepinephrine, the microglia became inactive and were unable to respond to local injuries and pulled back from their role in rewiring brain networks.

“This work suggests that the enhanced remodeling of neural circuits and repair of lesions during sleep may be mediated in part by the ability of microglia to dynamically interact with the brain,” said the study's first author.

“Altogether, this research also shows that microglia are exquisitely sensitive to signals that modulate brain function and that microglial dynamics and functions are modulated by the behavioural state of the animal,” the first author said.

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Scientists Develop New Method For Detecting Melanoma Skin Cancer

To solve the problem, researchers from Rockefeller University have developed an automated technology that can help physicians detect melanoma at early stages. The early detection is a key factor in lowering mortality from melanoma skin cancer. The new method could improve melanoma diagnosis and potentially replace screening that is the standard method for detecting skin cancer.

“There is a real need for standardization across the field of dermatology in how melanomas are evaluated,” said co-author James Krueger. “Detection through screening saves lives but is very challenging visually, and even when a suspicious lesion is extracted and biopsied, it is confirmed to be melanoma in only about 10 percent of cases.”

The new approach involves computer algorithms that process the images of lesions and extract quantitative data from them like shape and color of lesions. Then, they generate an overall risk score that is called a Q-score, indicating the chances of developing melanoma skin cancer. A score between zero and one represents the higher probability of lesion being a cancerous tumor.

Researchers claim that the new method can detect early melanomas on skin with 98 percent accuracy, which is impossible to achieve with conventional methods.

“The success of the Q-score in predicting melanoma is a marked improvement over competing technologies.” Lead author of the study Daniel Gareau said.

Researchers have developed the tool by feeding 60 images of cancerous melanomas. With the help of these images, the tool can precisely quantify visual changes in the growth of moles and calculates an overall Q-score. 

Melanoma is the most deadliest form of skin cancer. Despite using sunscreen and avoiding excessive exposure to sun, the incidence and mortality from melanoma is rising steadily in U.S. According to statistics, melanoma rate has doubled from 1982 and 2011. Around 76,000 Americans are expected to be diagnosed with melanoma this year, resulting in nearly 10,000 deaths.

 “This technology could help detect the disease earlier, which could save lives, and avoid unnecessary biopsies too,” said Gareau. “Our next step is to evaluate this method in larger studies and take a closer look at how can we use specific color wavelengths to reveal aspects of the lesions that may be invisible to the human eye but could still be useful in diagnoses.” 

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Breath test may help detect lung cancer

A simple breath test can help detect lung cancer in its early stages, according to a new study.

Researchers from University of Louisville using a silicone microprocessor and mass spectrometer tested the exhaled breaths of patients with suspicious lung lesions to detect the presence and levels of specific volatile organic compounds (VOCs; aldehydes and ketones, collectively called carbonyls).

The researchers then matched their findings with pathologic and clinical results, according to the study released at the 50th Annual Meeting of The Society of Thoracic Surgeons.

Although the data are preliminary, we found that patients with an elevation of three or four cancer-specific carbonyl compounds was predictive of lung cancer in 95% of patients with a pulmonary nodule or mass,” said Dr. Michael Bousamra, MD. “Conversely, the absence of elevated VOC levels was predictive of a benign mass in 80% of patients.”

Elevated carbonyl concentrations returned to normal following surgery to remove the malignant nodule.

“Instead of sending patients for invasive biopsy procedures when a suspicious lung mass is identified, our study suggests that exhaled breath could identify which patients may be directed for an immediate intraoperative biopsy and resection,” said Dr. Bousamra.  

ps- this is only for information, always consult you physician before having any particular food/ medication/exercise/other remedies.

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