• Published on: Jan 20, 2021
  • 1 minute read
  • By: Dr Rajan Choudhary

MRNA Vaccines – Uses Beyond COVID

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mRNA vaccines – uses beyond COVID

Last year we estimated it would take over a year for a vaccine against COVID to be approved, with vaccinations expected by spring 2021. Incredibly we have managed to meet this prediction, and by the start of January over 42 million doses have been administered in 51 countries. What is even more astounding is that two of the approved vaccines use a completely new vaccination method never used before. mRNA vaccines can be used to easily deliver a variety of different vaccines by changing the mRNA inside the vaccine capsule, and its benefits may not be limited to just infections.

A recent publication in NATURE has demonstrated the use of mRNA vaccines against auto-immune diseases such as multiple sclerosis. MS is an autoimmune condition in which the protective lining of nerves is destroyed by the body’s immune system, significantly slowing down or altering nerve impulse propagation. This leads to symptoms such as fatigue, vision problems, numbness, tingling, aberrant pain, muscle spasms and weakness.

The study looked at introducing antigen-specific tolerance in mice models of MS. This was achieved by activating anti-inflammatory white blood cells. Normally vaccines activate inflammatory white cells to produce a response but altered mRNA with one specific change to its base structure induces and activates anti-inflammatory cells instead.

Furthermore, this anti-inflammatory response is specific to cells that are activated by and attack the body’s nerve cells, thereby delivering a targeted response and not affecting the immune response against infections or cancer. Global immunosuppression is a common side effect of steroids and chemotherapy agents that are normally used to treat auto-immune conditions, and mRNA vaccines may avoid this side effect altogether.

A further advantage is its versatility. This has been demonstrated against multiple sclerosis, but changing the mRNA delivered by the vaccine, it may prove beneficial in far more auto-immune conditions. Of course, we have to emphasize this was an animal study and human trials are unlikely to happen in the next few years, but this study nicely demonstrates how the impact of the COVID pandemic may already be providing beneficial gains for the future.

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Monkeypox

Monkeypox Virus Symptoms: Early Signs, Disease Progression, and When to Seek Care

Monkeypox, now commonly referred to as mpox, is a viral infection that has gained global attention due to outbreaks beyond traditionally affected regions. Understanding monkeypox virus symptoms is essential for early detection, timely isolation and prevention of further spread.

According to the World Health Organization and Indian public health authorities, awareness of symptom patterns plays a critical role in controlling outbreaks and protecting vulnerable populations.

What Is the Monkeypox Virus?

Monkeypox is caused by the monkeypox virus, a member of the Orthopoxvirus family, which also includes smallpox. While generally less severe than smallpox, monkeypox can still cause significant illness and discomfort.

The virus spreads primarily through close physical contact.

 

Incubation Period of Monkeypox

After exposure, symptoms typically appear within:

  • 5 to 21 days

  • most commonly 6 to 13 days

Individuals may feel well during this period but can become infectious once symptoms begin.

 

Early Monkeypox Virus Symptoms

Fever

Fever is usually the first symptom and may be:

  • sudden in onset

  • moderate to high grade

  • accompanied by chills

Fever signals the start of systemic infection.

 

Headache and Body Aches

Patients often experience:

  • severe headache

  • muscle aches

  • back pain

These symptoms resemble many viral illnesses.

 

Fatigue and Weakness

Marked tiredness and low energy levels are common and may limit daily activities.

 

Swollen Lymph Nodes

Swollen lymph nodes are a distinguishing feature of monkeypox.

Common sites include:

  • neck

  • armpits

  • groin

This helps differentiate monkeypox from chickenpox or smallpox.

Development of Monkeypox Rash

The skin rash usually appears:

  • 1 to 3 days after fever onset

It may begin on the face or genital area and spread to other parts of the body.

 

Stages of Monkeypox Rash

The rash progresses through well-defined stages:

Macules

Flat red spots on the skin.

Papules

Raised, firm bumps.

Vesicles

Fluid-filled blisters.

Pustules

Pus-filled lesions that are painful.

Scabs

Lesions crust over and eventually fall off.

Complete healing occurs once scabs detach.

 

Distribution of Rash

Rash commonly affects:

  • face

  • hands and feet

  • mouth

  • genital and anal areas

The number of lesions can vary widely.

 

Pain and Discomfort

Rash lesions may be:

  • painful

  • itchy during healing

Pain severity differs between individuals.

 

Other Possible Symptoms

Additional symptoms may include:

  • sore throat

  • cough

  • nasal congestion

These reflect upper respiratory involvement.

 

Duration of Illness

Monkeypox symptoms typically last:

  • 2 to 4 weeks

Recovery occurs gradually as lesions heal.

 

Who Is at Higher Risk of Severe Illness?

Higher risk groups include:

  • children

  • pregnant women

  • individuals with weakened immunity

  • people with chronic illness

Early care is crucial in these groups.

 

Complications of Monkeypox

Though uncommon, complications may include:

  • secondary bacterial skin infections

  • dehydration

  • pneumonia

  • eye involvement

Prompt medical guidance reduces risk.

 

How Monkeypox Is Transmitted

Transmission occurs through:

  • direct skin-to-skin contact

  • contact with lesions or bodily fluids

  • respiratory droplets during close contact

  • contaminated clothing or bedding

Understanding transmission helps prevent spread.

 

When to Seek Medical Care

Seek medical evaluation if:

  • fever is followed by rash

  • lymph nodes become swollen

  • rash appears in genital or facial areas

Early diagnosis supports isolation and care.

 

Diagnosis and Testing

Diagnosis may involve:

  • clinical examination

  • laboratory testing of lesion samples

Public health authorities guide testing protocols.

 

Prevention and Control Measures

Preventive steps include:

  • avoiding close contact with infected individuals

  • maintaining good hand hygiene

  • isolating during illness

  • following public health guidance

Vaccination may be recommended for high-risk groups.

 

Role of Public Awareness

Awareness of symptoms:

  • enables early detection

  • reduces stigma

  • supports timely care

WHO emphasises community education in outbreak control.

 

Conclusion

Monkeypox virus symptoms typically begin with fever, body aches and swollen lymph nodes, followed by a characteristic rash that progresses through defined stages. While most cases are self-limiting, early recognition, medical evaluation and isolation are essential to prevent complications and reduce transmission. Staying informed and acting promptly protects both individual and public health.

 

References

  • World Health Organization (WHO) – Mpox (Monkeypox) Clinical and Public Health Guidance

  • Indian Council of Medical Research (ICMR) – Emerging Viral Infections Reports

  • National Centre for Disease Control (NCDC), India – Monkeypox Advisories

  • Lancet – Clinical Features and Outcomes of Mpox

  • NITI Aayog – Public Health Preparedness and Infectious Disease Control

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