One of the commonest causes of illness, a sore throat often clears up on its own, but knowing what's causing it is important to treat it properly. Viral, bacterial, or caused by allergic elements - these kinds of sore throats have different characteristics that need different responses.

Sore throats have several origins, including infection and environmental factors. Some common causes include:

Viral infections: Viruses cause 90% of sore throat cases. Sore throats may result due to flu or common cold as well as those from chickenpox and measles that can all cause irritation.

Bacterial Infections: Streptococcus bacteria, the most common cause of strep throat, is the most common bacterial source. Strep throat is contagious and can lead to complications if untreated.

Allergies: Pollen, pet dander, and mold can trigger throat irritation, often accompanied by postnasal drip, sneezing, and watery eyes.

Environmental Factors: Dry air, pollution, and smoke can dry out or irritate the throat, creating a scratchy sensation.

Other Causes: GERD, vocal strain, even tumors may be responsible for chronic sore throats.

How to Distinguish Between Viral, Bacterial, and Allergic Sore Throats

Determining your cause of sore throat requires analysis of symptoms that accompany it, how long the sore throat lasts, and how bad the sore throat is.

Viral Sore Throats

The viruses that cause a sore throat are usually similar to a cold in their symptoms and tend to be milder than bacterial infections.

Symptoms of Viral Sore Throat

- Red, swollen throat without white patches

- Persistent cough

- Runny nose and nasal congestion

- Fever, usually mild

Duration: Viral infections last for 7–10 days without antibiotics.

Treatment: Home remedies, such as warm fluids, saltwater gargling, and over-the-counter pain relievers can help alleviate it.

Also Read: Flu Season Grips 40 States In US, CDC Reports Alarming Numbers

Bacterial Sore Throats

Bacterial sore throats, mainly strep throat, are more severe and require prompt medical attention to prevent complications.

Symptoms of Bacterial Sore Throat

- Red and swollen tonsils with white patches or streaks of pus

- High fever

- Absence of a cough

- Nausea, vomiting, or stomach pain (especially in children)

- Small red spots on the roof of the mouth

Diagnosis: Rapid strep tests or throat cultures confirm the presence of bacteria.

Treatment: Antibiotics are necessary to eliminate the infection. Without treatment, complications like rheumatic fever or abscesses can develop.

Sore Throats Caused by Allergies

Throat irritation is caused by postnasal drip. Allergies create a buildup and drip of mucus down the back of the throat.

Allergic Sore Throat Symptoms

- Irritation of the throat and ears

- Runny eyes, sneezing, and nasal congestion

- These symptoms are usually relieved by antihistamines or removal from the source of the allergen

Duration: Allergic sore throats are sustained for as long as the allergens are exposed.

When to Seek Medical Care?

A sore throat should be taken to a doctor if:

- The condition lasts more than a week.

- There is shortness of breath or swallowing becomes painful.

- Swelling is too pronounced or the pain in the throat is extreme.

- High fever, rash, or joint pain occur along with the sore throat.

- A child shows signs of dehydration or refuses fluids due to throat pain.

Early diagnosis can prevent complications and speed recovery.

Effective Treatment for Sore Throats

Home Remedies for Viral and Allergy-Related Sore Throats

Viral infections and allergies often respond well to non-invasive treatments:

• Drink warm teas, broths, or water to soothe the throat.
• Gargling with warm, salty water can reduce inflammation.
• These help soothe an irritated throat and can alleviate coughing.

Let your body rest sufficiently. Humidifying dry air will help keep the throat moist, especially when winter is on its way.

Why Not All Sore Throats Require Antibiotics?

Bacterial infections require antibiotics such as penicillin or amoxicillin. Finish the treatment completely to avoid reoccurrence or resistance.

How to Keep Sore Throats at Bay When Winter Is Near

Prevention is better than cure, and simple lifestyle changes can reduce your risk:

• Wash your hands frequently to avoid infections.
• Avoid close contact with sick individuals.
• Use air purifiers to minimize exposure to irritants.
• Stay hydrated and maintain a balanced diet to boost immunity.

Understanding the cause of your sore throat—whether viral, bacterial, or allergic—is key to effective treatment and recovery. While many sore throats resolve on their own, seeking timely medical advice for persistent or severe symptoms can prevent complications. Prioritize self-care, and don’t hesitate to consult a doctor when needed. Remember, your throat’s health is a vital part of your overall well-being.

Earlier in November, the Public Health Ontario's (PHO) data revealed that Ontario and Canada as a whole could be in a "very tough" flu season this year, thanks to the Influenza A or the flu A. The PHO data revealed a 1.8% rise in influenza cases in the last week of October. Now, amid the influenza A outbreak, 3 children have died from the same in Ottawa and Eastern Ontario region.

Influenza A: Can Flu Kill People?

As per the infectious physician at the Johns Hopkins University Center for Health Security, as reported in Scientific American, "Dying from the flu is not like dying from a bullet or a black widow spider bite. The presence of the virus itself isn't going to be what kills you. An infectious disease always has a complex interaction with its host.”

Once the virus enters someone's body usually via their eyes, nose, or mouth, the influenza virus begins hijacking human cells in the nose and throat to make copies of itself. This triggers a strong response from the immune system, and sends battalions of white blood cells, antibodies and inflammatory molecules to eliminate the threat.

T cells work by targeting and destroying virus-infected tissue, especially in the respiratory tract and lungs where the infection usually settles. In most healthy adults, this response clears the virus and leads to recovery within days or weeks. In some cases, however, the immune reaction becomes excessive, damaging large areas of lung tissue and impairing oxygen delivery to the blood, which can cause hypoxia and, in severe cases, death.

What Is Influenza A?

As per the National Institutes of Health, US, influenza viruses that contains single-stranded RNA that are classified into three types: A, B, and C. Type A and B cause annual epidemics and even pandemics, while type C is a less common disease.

As per the Centers for Disease Control and Prevention (CDC), Influenza A viruses are descendants of the 2009 H1N1 pandemic virus that emerged in the spring of 2009 and caused a flu pandemic. These viruses, scientifically called the "A(H1N1)pdm09 virus," and more generally called "2009 H1N1," have continued to circulate seasonally since 2009 and have undergone genetic and antigenic changes.

Influenza A(H3N2) viruses also change genetically and antigenically. Influenza A(H3N2) viruses have formed many separate, genetically different clades in recent years that continue to co-circulate.

It is a fast-spreading respiratory virus responsible for seasonal flu outbreaks and, at times, global pandemics. It changes quickly through genetic shifts, which makes new strains harder to predict and control. The virus is grouped based on surface proteins called hemagglutinin and neuraminidase, with H1N1 and H3N2 among the most common strains in circulation. It spreads mainly through coughs, sneezes, or close contact and often comes on suddenly, causing fever, cough, body pain, and extreme tiredness. In some cases, it can lead to serious complications, especially in vulnerable groups.

Influenza A: Common Signs And Symptoms

• Fever or chills
• Dry cough
• Sore throat
• Headache
• Fatigue
• Some people could also get symptoms like diarrhea or vomiting, especially kids.

The symptoms usually appear 1 to 4 days after exposure and could linger for a week.

Hemoglobin is a key protein found in red blood cells. Its main job is to carry oxygen from your lungs to the rest of your body. When hemoglobin levels drop, the body may not receive enough oxygen to function well. Low hemoglobin can happen for several reasons, including health conditions, blood loss, or gaps in nutrition.

What Is Low Hemoglobin?

Hemoglobin is the oxygen-carrying protein in red blood cells. Adequate hemoglobin levels are essential for keeping organs and tissues properly supplied with oxygen. Without enough of it, the body begins to struggle to meet its basic energy needs.

Low hemoglobin is usually identified through a blood test. It is most often measured as part of a complete blood count (CBC), which checks different components of the blood, including red and white blood cells and platelets, as per Healthline.

While exact reference ranges can vary slightly between laboratories, healthy adult hemoglobin levels usually fall within the ranges listed below. These values are different for babies, children, and teenagers.

Normal Hemoglobin Count in Grams per Deciliter (g/dL) | Normal Hemoglobin Count in Grams per Liter (g/L)

Adult Males: 13.8–17.2 | 138–172

Adult Females: 12.1–15.1 | 121–151

Any reading below these ranges in adults is considered low hemoglobin and suggests that oxygen delivery in the body may be reduced, as per Mayo Clinic.

Is Low Hemoglobin Ever Dangerous?

Low hemoglobin is not always an emergency. In many cases, it develops gradually and can be managed with treatment. That said, very low levels can be dangerous. A hemoglobin level below 5.0 g/dL has been linked to serious complications, including heart failure and even death. Levels under 6.5 g/dL may be considered life-threatening and require urgent medical care.

What Causes Low Hemoglobin?

One of the most common reasons for low hemoglobin is anemia. Anemia occurs when the body does not have enough healthy red blood cells. The most frequent type is iron-deficiency anemia, which develops when the body lacks enough iron to produce hemoglobin.⁵

Other forms of anemia include pernicious anemia, which occurs when the body cannot properly absorb vitamin B12, and hemolytic anemia, where red blood cells are destroyed faster than they are produced.¹

Low hemoglobin can also be caused by:

• Blood loss or internal bleeding
• Certain cancers, including leukemia, lymphoma, multiple myeloma, and cancers that spread to the bone marrow
• Chronic kidney disease
• Deficiencies of folate or vitamin B12
• Hypothyroidism
• Liver disease
• Poor nutrition or malnutrition
• Myelodysplastic syndrome (MDS)
• Sarcoidosis
• Sickle cell disease and other inherited blood disorders
• Systemic lupus erythematosus
• Thalassemia, a genetic condition that reduces hemoglobin production
• Excess fluid in the body
• Cancer treatments such as chemotherapy and radiation can also lower hemoglobin levels, particularly in adults over the age of 65.

What Does Having Low Hemoglobin Feel Like?

Some people with mildly low hemoglobin may not notice any symptoms at first. Others may begin to feel unwell as levels drop further or remain low over time.

Common signs and symptoms include:

• Feeling dizzy or lightheaded, sometimes fainting
• Muscle weakness
• Ongoing fatigue or low energy
• Pale or washed-out skin
• Frequent headaches

How Is Low Hemoglobin Treated?

Treatment depends entirely on what is causing the low hemoglobin. A healthcare provider will first identify the underlying reason before recommending treatment.

Possible treatment options include:

Blood transfusion: If hemoglobin is low due to heavy blood loss, a transfusion may be needed to restore levels quickly.

Vitamin supplements: When nutritional deficiencies are the cause, iron, folate, or vitamin B12 supplements are often prescribed. Hemoglobin levels usually begin to improve within six to eight weeks.

Intravenous (IV) therapy: In cases where iron or B12 levels need to be raised rapidly, IV infusions may be recommended.

Bone marrow transplant: This may be required when low hemoglobin is linked to certain cancers or bone marrow disorders.

If a long-term illness is responsible, managing that condition becomes the key part of treatment, alongside monitoring hemoglobin levels regularly.

One particularly vulnerable group across the UK is being strongly advised to receive up to three vaccines this season. This winter has seen a sharp rise in seasonal viruses, with the NHS warning that hospitals and ambulance services are under significant pressure due to higher demand.

This surge is largely driven by the H3N2 flu strain, known as subclade K, which is currently circulating at ‘medium’ levels but with increased activity. The UK Health Security Agency reports that flu-related hospital admissions have climbed to 7.79% per 100,000, up from 4.78% per 100,000 the previous week.

While common winter viruses such as flu, RSV, and whooping cough can cause uncomfortable symptoms for most people, certain groups face a higher risk of serious complications. These include children, older adults, people with weakened immune systems, and pregnant women.

Why You Should Get Vaccinated While Pregnant

Flu shots are highly effective at protecting both mothers and their babies, as the body responds differently to infections during pregnancy. NHS guidance notes that pregnant women are more susceptible to complications from viral infections, particularly in the later stages of pregnancy.

Infants are also at a higher risk of severe illness if exposed to viruses, which can sometimes result in mothers and babies requiring intensive care. Additionally, infections like flu can increase the risk of premature birth or low birth weight, which may raise the chance of stillbirth or neonatal death.

Posting on X, the UK Health Security Agency said that pregnant women are entitled to vaccinations against flu, RSV, and whooping cough, and advised them to consult their midwife, GP, or local pharmacist for guidance on getting vaccinated.

How Vaccines Protect Pregnant Mothers And Their Babies

Vaccination during pregnancy passes protective antibodies to the baby, giving them similar levels of defence against serious illness in the first weeks of life. This applies to vaccines for flu, whooping cough, and RSV, helping shield both mother and newborn.

Vaccines Pregnant Women Aren't Advised To Get

Pregnant women are generally advised to avoid vaccines that contain a live version of a virus, as these could theoretically infect the unborn child. However, evidence shows live vaccines do not typically cause birth defects.

The main exception is when the risk of infection is higher than the potential risk from the vaccine itself. Examples of live vaccines include:

• Yellow fever
• Measles, mumps, and rubella (MMR)
• Tuberculosis (BCG vaccine)

Is It Safe To Get A Flu Shot During Pregnancy?

The American College of Obstetricians and Gynecologists advises that anyone who is pregnant during flu season should receive the flu shot, regardless of which trimester they are in.

A flu vaccine during pregnancy can help in several ways:

Lower the risk of flu-related illness during pregnancy

Pregnancy changes how the immune system, heart, and lungs function, which can make flu infections more severe. A flu shot reduces the chance of catching the flu and lowers the risk of needing hospital care if you do get sick.

Reduce risks to the developing baby

Getting the flu, especially early in pregnancy, may increase the risk of certain health problems in the unborn baby. Flu infection has also been linked to a higher chance of birth-related complications.

Protect the baby after delivery

Newborns are more likely to become seriously ill from the flu, but they cannot be vaccinated until they are six months old. Antibodies produced after a flu shot during pregnancy cross the placenta and are also found in breast milk, helping protect the baby in the first months of life.

When getting vaccinated, pregnant women should choose the flu shot, not the nasal spray. The injection uses an inactive virus and is safe at any stage of pregnancy. The nasal spray contains a live virus and is not recommended for pregnant women.