Infectious diseases have always been a concern for parents, especially when it comes to children who do not have the ability to express their suffering clearly. Among the most common types of infections that affect young children are bacterial and viral infections, and although some of the symptoms are similar between them, each type has its own distinct characteristics that help differentiate between them, and this distinction is a crucial step towards determining the appropriate treatment. Therefore, we present to you this article from Al Mousa Specialist Hospital to explain the difference between bacterial and viral infections for children, with a focus on the distinctive symptoms of each, to help parents

1. What is a bacterial infection and what is a viral infection?

In most cases, infectious diseases cause confusion for those infected or their parents in the case of children. What is the difference between bacterial and viral infections in children in order to know the appropriate treatment? 

What is a bacterial infection? 

Not all types of bacteria are harmful, as many of them live naturally inside our bodies and on our skin without causing any harm, and some of them are even very beneficial, such as intestinal bacteria that aid in digestion, but harmful bacteria can cause various diseases when they enter the body and multiply.

While viral infections are known as diseases caused by viruses, which are much smaller organisms than bacteria, they are not considered living organisms in the full sense. 

Viruses cannot reproduce on their own. Rather, they need a living cell, such as a cell in the human or animal body, to parasitize and use their mechanisms to make new copies of themselves. After they reproduce, they destroy the host cell to release new viruses that attack other cells.

2. How do children get infected?

The difference between bacterial and viral infections in children does not include the methods of infection, as they are the same in both cases, as children are exposed to infection as a result of several factors, including the weakness of their immune system, which is still developing, in addition to their constant mixing with other children in nurseries and schools, which facilitates the transmission of bacterial and viral infections to children in several ways, including:

• Transmission is through the respiratory system, which is one of the most common ways, as viruses and bacteria spread through droplets flying from the mouth and nose of an infected person when coughing, sneezing, or even talking, and then the child inhales this droplet directly, which leads to infection.
• Transmission is through direct contact, that is, when a child touches a sick person directly, such as by shaking hands or hugging, or by the child touching contaminated surfaces, such as door handles, toys, or pens, and then touching the eyes, nose, or mouth.
• Transmission through the digestive system, when children eat food or drink contaminated with bacteria or viruses, or when they use unclean eating utensils. Diseases transmitted in this way are known as digestive system diseases, such as food poisoning.
• Transmission from mother to child, during pregnancy or childbirth, or even after birth through breastfeeding.

Learn about: Types of viral infections وكيفية الوقاية منها

3. Characteristic symptoms of each type of infection

When your child becomes ill, the difference between bacterial and viral infections in children is the symptoms of each. Although they may be similar at first, there are some differences that can help you recognize each type, including:

Symptoms of bacterial infection

Bacterial infection is usually characterized by some signs that may indicate the need to consult a doctor to prescribe an antibiotic, examples of which include:

• A high temperature or fever characterizes a bacterial infection, and it may last longer.
• The appearance of local symptoms in a specific place in the body, such as ear infection, sore throat, or sinusitis.
• Symptoms do not improve over time, but may gradually worsen.

Symptoms of viral infection

It is most common in children, especially in the fall and winter, and its symptoms are often general and improve on their own. Examples include:

• High fever, but less severe than bacterial fever, and may come and go intermittently.
• Systemic symptoms on a larger scale in the body, such as: runny nose and cough or the appearance of a skin rash and fluid-filled blisters in chickenpox or nausea and vomiting in enteroviruses.
• Symptoms improve gradually, most often within a few days to a week, with rest and home care. This is one of the most important differences between bacterial and viral infections in children.

4. When is a fever an indicator of a bacterial infection?

Fever is often an indicator of the presence of an infection in the body, whether bacterial or viral, but there are some signs that may indicate that your child’s fever may be related to a bacterial infection. Among the most prominent differences between bacterial and viral infections in children, these signs include:

• Very high fever of more than 39°C and lasting for more than two to three days.
• Worsening of the condition, that is, if the child’s condition begins to improve and then the fever returns worse, or if new and severe symptoms appear after a period of improvement.
• The appearance of local symptoms accompanying fever, such as severe pain in the throat or ear, the presence of spots or pus on the tonsils, or fluid coming out of the ear.
• Age: Fever in infants under three months should always be taken seriously, and a doctor should be consulted immediately, as it may be an indication of a serious bacterial infection.

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5.  The difference in the duration of illness between bacterial and viral infections in children

Understanding the duration of the disease is the most prominent difference between bacterial and viral infections in children. Each type of infection has its own time course that can help parents determine the nature of the disease, but a doctor must always be consulted for an accurate diagnosis.

In most common viral illnesses, such as colds and flu, viral infections are short-lived, usually lasting from a few days to two weeks, and then symptoms begin to improve on their own with rest, fluids and home care. 

While bacterial infections usually take longer to heal and may require specialist treatment, they tend to have a more gradual onset and may last longer if untreated.

It is worth noting that when you start treating a bacterial infection with antibiotics, the child may begin to feel better within a few days. However, it is necessary to complete the full course of treatment prescribed by the doctor, which is usually 7 to 14 days to ensure the complete elimination of bacteria and prevent them from returning or developing resistance to antibiotics.

Frequently asked questions 

How do I know if my child has a viral or bacterial infection?

To answer the most common questions: How do I know if my child’s illness is viral or bacterial?

• Viral infection, fever less than 39°C, runny nose or congestion, sneezing and coughing, loss of appetite, general fatigue, and symptoms usually improve within 3-7 days without antibiotics.
• Bacterial infection, high fever above 39°C lasting more than 3 days, and complaining of severe local pain, with the presence of pus in the site of the infection such as the tonsils or ear, and the symptoms get worse after 3-5 days instead of improving. 

How do I differentiate between a viral and bacterial cold?

To distinguish between a viral cold known as a cold and a bacterial infection, here are some of these points:

First: viral cold

It is the most common in 90% of cases, as symptoms begin gradually within 1-2 days, including:

• Runny nose, watery and then thick secretions that may become yellow or green after a few days without indicating bacteria. 
• Sneezing and coughing that is dry or accompanied by clear phlegm.
• Mild fever, rare in adults but more common in children. 
• Sore throat without pus.
• General fatigue, but the child plays and eats well. 
• Symptoms improve within 5-7 days, but the cough may last two weeks.

Second: bacterial infection 

It is not as common as a viral infection and requires antibiotics to heal. Its symptoms are:  

• High fever above 38.5°C lasting more than 3 days.
• Severe localized pain, such as in one ear, or throat with white spots on the tonsils.
• Thick, yellow or green purulent discharge from the nose, eyes, or ear, which is a distinct sign of the difference between bacterial and viral infections in children. 
• Swollen lymph nodes with redness.
• Worsening of symptoms, after initial improvement. 

In conclusion, understanding the difference between bacterial and viral infections in children and distinguishing the distinctive symptoms of each infection is a first and crucial step towards protecting their health, as it enables parents to make informed decisions and avoids unnecessary resort to antibiotics that may do more harm than good.

Thanks to the extensive experience  of the specialized medical staff at Al-Mousa Specialist Hospital in Al-Ahsa, it is a safe and advanced environment for diagnosis and treatment. By benefiting from their expertise in the pediatric departments, parents can obtain accurate diagnosis and effective treatment, whether the condition requires an antibiotic for a bacterial infection or supportive care for a viral infection. 

فلا تتردد في زيارتنا للحصول على الاستشارة والعلاج الأمثل أو الاتصال على الأرقام المدونة على الموقع للمزيد من التفاصيل والحجز والاستفسار. 

Sources 

Bacterial and Viral Infections – webmd

What is the difference between bacterial and viral infections? – healthdirect