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Published on: Nov 28, 2021
2 minute read
By: Second Medic Expert

A Variant Of Concern: Omicron

A variant of Concern: Omicron

The World Health Organization has designated the strain, now named Omicron, as a variant of concern and said multiple studies are underway to monitor its development.

The Unknowns - Scientists are warning that the variant could be more contagious, but they don't really know for sure. They also worry about its effects on vaccine efficacy and severity of disease - we'll just have to wait until there's more research!
Where it has been identified - The variant has so far been identified in South Africa, Botswana, Hong Kong, and Belgium. A specimen from the first known case of the variant in South Africa was collected November 9, the WHO said Friday.
The number of variant cases - Now, the number of variant cases seems to be increasing in nearly every province of the country, the WHO said. South Africa has currently fully vaccinated less than 36% of its adult population and its rate of new vaccinations had fallen in recent days, according to the country's health department.
Cases Identified - South African officials also initially said there was one confirmed case in a traveler from South Africa to Hong Kong. Friday, Hong Kong health authorities identified a second case of the variant among returning travelers on the same floor of a designated quarantine hotel. Health authorities ordered at least 12 people in nearby rooms to undergo mandatory Covid-19 testing and two weeks of quarantine in a government center. Also on Friday, the Belgian government said an individual who had recently traveled from Egypt and was unvaccinated, tested positive for the variant, marking the first case in Europe.
High number of Mutations: South African genomic scientists said earlier this week the variant has an unusually high number of mutations, with more than 30 in the key spike protein -- the structure the virus uses to get into the cells they attack.
The concern: Scientists are concerned those mutations could make the variant more transmissible and could result in immune evasion. Scientists are working to find out whether the variant could evade immunity, saying its mutations can help hint or predict whether it will be the case.
Vaccine Efficacy: The million-dollar question is, is there a tiny hit to vaccine efficacy, or is there a large hit? we'll get some preliminary data probably in the next few days.
How it compares with other variants - While mutations -- and new variants -- of the virus are expected as it continues to spread, experts say there's more reason for concern with Omicron. As per the scientists they have seen a lot of variants pop up over the last five, six months, and most of them have not amounted to much but this looks different. It's acting differently, it looks like it's much more contagious than even the Delta variant." WHO officials also said in their statement Friday preliminary evidence suggests Omicron also poses a higher risk of reinfection, compared to other variants of concern.

What vaccine makers are saying

In a Friday news release, Moderna said it was rapidly working to test the ability of its vaccine to neutralize the variant, and data is expected in the coming weeks.

The strain includes mutations "seen in the Delta variant that are believed to increase transmissibility and mutations seen in the Beta and Delta variants that are believed to promote immune escape," Moderna said. "The combination of mutations represents a significant potential risk to accelerate the waning of natural and vaccine-induced immunity."

The Solution: If its current vaccine and booster are insufficient against the variant, one possible solution is boosting people with a larger dose, which Moderna said it is testing. The company is also evaluating two multivalent booster candidates to see if they provide better protection against Omicron -- both of which include some of the viral mutations present in the variant. Moderna said it is also testing an Omicron-specific booster. AstraZeneca also said it was looking to understand the impact Omicron has on its vaccine, which is not currently authorized for use in the US. A Johnson & Johnson spokesperson told CNN in a statement the company was also testing the effectiveness of its vaccine against Omicron.

Why Travel Restrictions?

Travel restrictions will buy governments some time to investigate the variant, but it's inevitable the strain will eventually appear and spread.

Source : who,cnn

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Is it Allergy or Asthma? How to Know the Difference

Have you ever found yourself sneezing, coughing, or gasping for air and wondering whether it's just a seasonal allergy or something more serious like asthma? You're not alone. Many people confuse the symptoms of allergies and asthma because they often overlap. However, knowing the difference between the two is crucial for getting the right treatment and managing your condition effectively.

In this blog, we’ll explain what allergies and asthma are, how they’re related, what makes them different, and how to know what you’re dealing with.

What Are Allergies?

Allergies happen when your immune system reacts to a harmless substance like pollen, dust, or pet dander as if it were dangerous. These substances are called allergens. When you're exposed to an allergen, your body releases chemicals like histamine that cause allergy symptoms.

Common Allergy Symptoms:

Sneezing
Runny or stuffy nose
Itchy eyes, nose, or throat
Watery eyes
Skin rashes or hives
Coughing (especially at night)
Fatigue

These symptoms usually appear quickly after exposure to the allergen and can range from mild to severe.

What Is Asthma?

Asthma is a chronic lung disease that inflames and narrows your airways, making it hard to breathe. Asthma can be triggered by many things—including allergens. When asthma flares up, it’s called an asthma attack or asthma episode.

Common Asthma Symptoms:

Shortness of breath
Chest tightness or pain
Wheezing (a whistling sound when breathing)
Coughing (often worse at night or early morning)
Trouble sleeping due to breathing issues

Asthma symptoms can come and go. They may be triggered by allergens, cold air, exercise, smoke, or even stress.

Are Allergies and Asthma Related?

Yes, they are! Many people who have allergies also have asthma. This condition is called allergic asthma. In fact, allergens like pollen, mold, pet dander, and dust mites are common asthma triggers.

When you breathe in something you're allergic to, your airways can become inflamed, making it difficult to breathe—this is where allergies and asthma overlap.

Key Differences Between Allergy and Asthma

Feature	Allergy	Asthma
Affects	Eyes, nose, throat, skin	Lungs and airways
Symptoms	Sneezing, itching, watery eyes, rashes	Wheezing, breathlessness, chest tightness
Trigger	Pollen, dust, food, pets, etc.	Allergens, exercise, cold air, pollution
Time of Symptoms	Immediate (within minutes)	May develop slowly or suddenly
Treatment Focus	Antihistamines, avoiding allergens	Inhalers, bronchodilators, steroids

While allergies mostly affect the upper airways (like your nose and throat), asthma affects the lower airways (your lungs).

How to Know What You Have

1. Track Your Symptoms

Keep a journal of what symptoms you experience, when they occur, and what you were doing at the time. Are you only sneezing and sniffling when the pollen count is high? Do you wheeze and cough after jogging or being around pets?

2. Get Allergy Testing

Your doctor may recommend a blood test or skin prick test to find out what you’re allergic to. This is especially helpful if your symptoms are triggered by specific things like pollen or food.

3. Do a Lung Function Test (Spirometry)

This simple breathing test helps measure how well your lungs work. If you have asthma, the test may show that your airways are narrowed or inflamed. The results also help doctors decide how severe your asthma is.

4. Observe When Symptoms Occur

If your symptoms occur mostly in certain seasons (like spring or fall), they may be due to allergies. If they happen during exercise or at night, it could be asthma.

Can You Have Both?

Absolutely. Many people live with both allergies and asthma. In these cases, managing one helps manage the other. For example, taking allergy medication can help reduce asthma symptoms triggered by allergens.

That’s why it's important to get a proper diagnosis. Treating only one condition when you have both may not bring full relief.

Treatment Options

For Allergies:

Antihistamines – reduce sneezing and itching
Nasal sprays – ease a runny or blocked nose
Eye drops – soothe itchy, watery eyes
Allergy shots (immunotherapy) – gradually reduce your sensitivity to allergens

For Asthma:

Inhalers – deliver medicine directly to the lungs
Long-term medications – reduce airway inflammation
Rescue inhalers – for quick relief during an attack
Lifestyle changes – avoid triggers, keep your environment clean

Always consult a doctor before starting any treatment.

When to See a Doctor

You should see a healthcare provider if:

You have trouble breathing or frequent coughing
Symptoms interfere with daily life or sleep
Over-the-counter allergy medicine isn’t helping
You need to use your asthma inhaler more often than usual

Early diagnosis and treatment can prevent complications and improve your quality of life.

Final Thoughts

Understanding the difference between allergies and asthma is the first step in managing your health. Both are common, manageable conditions—but only if you know what you're dealing with. By observing your symptoms and getting tested, you can find the right path to relief.

Conclusion: Is it Allergy or Asthma? How to Know the Difference

If you're asking yourself, "Is it allergy or asthma? How to know the difference," the answer lies in understanding your symptoms, knowing your triggers, and getting the right tests done. Don’t guess—get tested through trusted services like SecondMedic and take control of your breathing and well-being today!

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