Specialized Care for Infections & Infectious Diseases

The Infectious Disease Department at AS Medical Complex provides specialized evaluation, diagnosis, treatment, and ongoing management for infections caused by bacteria, viruses, fungi, parasites, and other infectious organisms.

Infectious diseases can affect almost any part of the body and may range from common infections that resolve with appropriate treatment to complicated, recurrent, resistant, or serious infections requiring specialist assessment.

Different infectious organisms can spread through different routes, including direct contact, respiratory droplets, airborne transmission, contaminated food or water, blood exposure, and other pathways.

Our Infectious Disease Department focuses on identifying the underlying cause of infection, selecting appropriate investigations, recommending evidence-based treatment, monitoring response, and helping reduce unnecessary or inappropriate antimicrobial use.

Our Infectious Disease Services

The Infectious Disease Department at AS Medical Complex may provide assessment and management for:

• Unexplained or persistent fever

• Recurrent fever

• Bacterial infections

• Viral infections

• Fungal infections

• Parasitic infections

• Respiratory infections

• Pneumonia

• Tuberculosis assessment and follow-up

• Gastrointestinal infections

• Persistent or infectious diarrhea

• Food- and water-related infections

• Urinary tract infections

• Recurrent urinary infections

• Skin and soft-tissue infections

• Bone and joint infections

• Bloodstream infections

• Hepatitis and selected viral infections

• Recurrent infections

• Difficult-to-treat infections

• Drug-resistant infections

• Infections in patients with reduced immunity

• Fever after travel

• Travel-related infections

• Infection following surgery or hospitalization

• Healthcare-associated infections

• Antibiotic treatment review

• Antimicrobial stewardship

• Infection-prevention guidance

• Long-term follow-up for selected infectious diseases

The exact investigations and treatments recommended depend on the patient's symptoms, medical history, examination findings, and suspected infection.

Fever & Unexplained Fever

Fever is a common response to infection but can also occur because of inflammatory, autoimmune, medication-related, and other medical conditions.

Infectious Disease assessment may be appropriate when a patient has:

• Persistent fever

• Recurrent fever

• Fever without an identified cause

• Fever with significant weakness

• Fever following recent travel

• Fever associated with weight loss

• Fever associated with night sweats

• Fever in a patient with reduced immunity

• Fever following hospitalization or surgery

• Fever that has not responded as expected to initial treatment

Assessment may include a detailed history, physical examination, laboratory investigations, cultures, and imaging depending on the clinical situation.

The aim is to identify the cause before repeatedly using antibiotics without a confirmed indication.

Bacterial Infections

Bacteria can cause infections affecting many parts of the body.

Examples may include:

• Pneumonia

• Urinary tract infections

• Skin infections

• Wound infections

• Gastrointestinal infections

• Bloodstream infections

• Bone and joint infections

• Certain forms of meningitis

• Tuberculosis

• Other bacterial diseases

Treatment depends on:

• The site of infection

• The suspected or confirmed bacteria

• Severity of illness

• Culture and sensitivity results when available

• Patient age

• Kidney and liver function

• Drug allergies

• Previous antibiotic exposure

• Other medical conditions

Antibiotics should be selected according to clinical need rather than used automatically for every fever or infection.

Viral Infections

Viral diseases can affect the respiratory system, liver, gastrointestinal tract, nervous system, skin, and other organs.

Patients may require assessment for selected:

• Respiratory viral infections

• Influenza-like illnesses

• Viral hepatitis

• Viral gastrointestinal infections

• Persistent viral illnesses

• Complicated viral infections

• Viral infections in immunocompromised patients

Antibiotics do not treat viral infections. Treatment depends on the specific virus and may involve supportive care, antiviral medication when indicated, monitoring, and management of complications.

Fungal Infections

Fungal infections range from common superficial infections to serious systemic disease, particularly in people with weakened immune systems.

Infectious Disease consultation may be appropriate for:

• Persistent fungal infections

• Recurrent fungal disease

• Deep or systemic fungal infections

• Fungal infection in immunocompromised patients

• Infection not responding to standard treatment

• Suspected fungal infection involving internal organs

Diagnosis may require cultures, microscopy, blood testing, imaging, biopsy, or other specialized investigations depending on the suspected infection.

Parasitic Infections

Parasites can cause illness through contaminated food or water, insect bites, travel exposure, and other routes.

Parasitic infections may affect:

• Gastrointestinal system

• Blood

• Liver

• Skin

• Other organs

Patients with persistent fever, diarrhea, anemia, abdominal symptoms, or illness following travel may require assessment for parasitic disease depending on their history and exposure.

Treatment is selected according to the specific parasite identified or suspected.

Respiratory Infections

Respiratory infections are a common reason for medical consultation.

The Infectious Disease Department may evaluate selected patients with:

• Persistent respiratory infection

• Recurrent pneumonia

• Complicated pneumonia

• Tuberculosis

• Respiratory infection in immunocompromised patients

• Infection not responding to initial therapy

• Resistant bacterial respiratory infection

• Fever associated with significant respiratory symptoms

Depending on the patient's condition, investigations may include:

• Chest X-ray

• CT chest

• Complete Blood Count

• Blood cultures

• Sputum examination

• Sputum culture

• Viral testing

• Tuberculosis testing

• Other laboratory investigations

Severe breathing difficulty or rapidly worsening respiratory symptoms require urgent medical assessment.

Pneumonia

Pneumonia is an infection involving the lungs and may be caused by bacteria, viruses, fungi, or other organisms.

Symptoms can include:

• Fever

• Cough

• Sputum production

• Shortness of breath

• Chest discomfort

• Chills

• Weakness

• Reduced oxygen levels in severe illness

Some patients can be treated as outpatients, while others may require hospitalization depending on age, severity, oxygen levels, underlying health conditions, and complications.

Patients with complicated or recurrent pneumonia may require coordinated care between Infectious Disease and Pulmonology.

Tuberculosis – TB

Tuberculosis (TB) is caused primarily by Mycobacterium tuberculosis. It most commonly affects the lungs but can also involve other parts of the body, including the kidneys, spine, lymph nodes, and brain.

There is an important difference between inactive TB infection and active TB disease. People with inactive TB do not have symptoms and do not spread TB to others, while active TB disease requires appropriate treatment and infection-control measures.

Possible symptoms of active pulmonary TB may include:

• Persistent cough

• Fever

• Night sweats

• Unexplained weight loss

• Weakness

• Reduced appetite

• Blood in sputum

Assessment may involve:

• Clinical examination

• Chest imaging

• Sputum testing

• Molecular testing

• Microbiological investigations

• Additional investigations for disease outside the lungs

TB treatment requires an appropriate multi-drug regimen and medical follow-up. Patients should not stop treatment early simply because symptoms improve.

Gastrointestinal Infections

Infectious diseases can affect the stomach and intestines and may produce:

• Diarrhea

• Vomiting

• Abdominal cramps

• Fever

• Blood or mucus in stool

• Dehydration

• Loss of appetite

Possible causes include bacterial, viral, and parasitic infections.

Most short-lasting gastrointestinal illnesses do not require specialist care, but Infectious Disease assessment may be appropriate for:

• Severe diarrhea

• Persistent diarrhea

• Bloody diarrhea

• Recurrent gastrointestinal infection

• Illness after international travel

• Suspected parasitic infection

• Infection in an immunocompromised patient

• Symptoms not responding to initial treatment

Stool testing, cultures, blood tests, or additional investigations may be recommended depending on the clinical situation.

Food & Water-Borne Infections

Contaminated food or water can transmit bacterial, viral, and parasitic infections.

Symptoms may include:

• Diarrhea

• Vomiting

• Fever

• Abdominal pain

• Dehydration

• Weakness

Evaluation may be particularly important when:

• Several people become ill after consuming the same food

• Symptoms are severe

• Blood appears in stool

• Fever is persistent

• Dehydration develops

• The patient has recently traveled

• The patient has reduced immunity

Appropriate testing can help determine whether antimicrobial treatment is required.

Urinary Tract Infections

Urinary tract infections can affect the bladder, kidneys, or other parts of the urinary system.

Symptoms may include:

• Burning during urination

• Frequent urination

• Urgency

• Lower abdominal discomfort

• Fever

• Flank or back pain

• Blood in urine

• Nausea or vomiting in more severe infection

Specialist assessment may be useful for:

• Recurrent urinary infections

• Resistant infections

• Kidney infection

• Infection associated with urinary devices

• Infection in patients with complex medical conditions

• Infection not improving with standard treatment

Urine culture and sensitivity testing may help guide antibiotic selection when clinically appropriate.

Skin & Soft-Tissue Infections

Infectious organisms can cause infections involving the skin and tissues beneath it.

Patients may develop:

• Redness

• Swelling

• Warmth

• Pain

• Pus or drainage

• Fever

• Wound infection

Serious or rapidly spreading infections may require urgent treatment.

Care may be coordinated with Dermatology, General Surgery, or other specialties depending on the site and severity of infection.

Bone & Joint Infections

Infections involving bones or joints can become serious and may require prolonged treatment.

Possible symptoms include:

• Persistent localized pain

• Joint swelling

• Warmth

• Reduced movement

• Fever

• Wound or infection near the affected area

Diagnosis may involve:

• Blood tests

• Cultures

• X-ray

• MRI

• Joint-fluid examination

• Tissue sampling

• Other investigations

Management may require coordination between Infectious Disease, Orthopedics, Radiology, and Surgery.

Bloodstream Infections

A bloodstream infection occurs when infectious organisms enter the blood and can potentially spread throughout the body.

Patients may experience:

• Fever

• Chills

• Weakness

• Rapid heart rate

• Low blood pressure

• Confusion

• Breathing difficulty

• Signs of infection elsewhere in the body

Blood cultures can help identify organisms responsible for selected bloodstream infections and guide treatment.

Patients with suspected severe bloodstream infection require prompt medical evaluation.

Sepsis

Sepsis is a medical emergency that can occur when the body's response to infection leads to serious organ dysfunction.

Possible warning signs can include:

• Severe weakness

• Confusion

• Difficulty breathing

• Rapid breathing

• Low blood pressure

• Reduced urine output

• Altered consciousness

• Severe deterioration during an infection

Suspected sepsis requires immediate hospital assessment and treatment and should not wait for a routine Infectious Disease appointment.

Hepatitis & Liver-Related Infections

Some viruses can cause inflammation of the liver.

Patients may require assessment for selected forms of viral hepatitis, particularly when there are:

• Abnormal liver-function tests

• Yellowing of the skin or eyes

• Dark urine

• Persistent fatigue

• Nausea

• Abdominal discomfort

• Known exposure

• Positive hepatitis screening tests

Further evaluation may involve:

• Liver-function tests

• Viral markers

• Molecular testing

• Ultrasound

• Other investigations

Depending on the diagnosis, care may be coordinated with Gastroenterology or Hepatology.

Recurrent Infections

Repeated infections can occur for many reasons.

Possible contributing factors may include:

• Poorly controlled diabetes

• Structural problems affecting an organ

• Repeated exposure

• Inadequate previous treatment

• Resistant organisms

• Long-term medical devices

• Reduced immune function

• Certain medications

• Other chronic medical conditions

Rather than repeatedly prescribing the same treatment, specialist assessment can help determine why infections continue to recur.

Infections in Immunocompromised Patients

People with reduced immune function may develop infections more easily or experience more severe forms of infection.

This may include selected patients receiving:

• Cancer treatment

• Immune-suppressing medication

• Treatment for autoimmune diseases

• Organ-transplant medication

• Long-term corticosteroids

• Other treatments affecting immunity

Specialist management may be needed because symptoms, diagnostic findings, and treatment choices can differ from those in patients with normal immune function.

Infections After Surgery

Post-operative infection can involve:

• Surgical wounds

• Skin and soft tissues

• Lungs

• Urinary tract

• Bloodstream

• Surgical implants or devices

• Internal surgical sites

Possible signs include:

• Fever

• Increasing wound pain

• Redness

• Swelling

• Pus or drainage

• Wound breakdown

• Unexpected deterioration after surgery

Depending on the condition, management may involve Infectious Disease, Surgery, wound-care services, and other specialties.

Healthcare-Associated Infections

Healthcare-associated infections can develop during or following medical care.

Infection prevention and control is an evidence-based approach designed to reduce avoidable infections among both patients and healthcare workers. WHO identifies areas such as hand hygiene, injection safety, surgical-site infection prevention, and antimicrobial resistance as important components of infection-control programs.

Patients with suspected healthcare-associated infection may require:

• Culture-based testing

• Antibiotic review

• Assessment for resistant organisms

• Evaluation of medical devices

• Infection-control measures

• Multidisciplinary management

Antimicrobial Resistance

Antimicrobial resistance (AMR) occurs when bacteria, viruses, fungi, or parasites no longer respond adequately to medicines designed to treat them. This can make infections more difficult to treat and increase the risk of severe illness and spread.

Misuse and overuse of antimicrobial medicines are important drivers of antimicrobial resistance.

Examples of antimicrobials include:

• Antibiotics

• Antivirals

• Antifungal medicines

• Antiparasitic medicines

Responsible treatment aims to use the right medicine, at an appropriate dose and duration, for the right infection.

Patients should avoid:

• Taking antibiotics without medical advice

• Using leftover antibiotics

• Sharing antibiotics with others

• Stopping prescribed treatment early without medical advice

• Repeatedly changing antibiotics without appropriate assessment

Antibiotic Stewardship

Not every infection requires antibiotics.

Antibiotic stewardship involves using antibiotics appropriately to improve patient outcomes while reducing unnecessary exposure and the development of resistant organisms.

The Infectious Disease team may assist with:

• Selecting an appropriate antibiotic

• Reviewing culture results

• Adjusting treatment according to sensitivity testing

• Determining treatment duration

• Changing from intravenous to oral medication when clinically appropriate

• Reviewing treatment when an infection is not responding

• Avoiding unnecessary antibiotic use

Preventing infection can also reduce the need for antimicrobial medicines and therefore contributes to efforts against antimicrobial resistance.

Travel-Related Infections

People may develop infectious diseases during or after domestic or international travel.

Medical assessment may be appropriate for:

• Fever after travel

• Persistent diarrhea after travel

• Unusual rash

• Jaundice

• Respiratory illness

• Suspected mosquito-borne disease

• Suspected parasitic infection

• Exposure to contaminated food or water

• Exposure to known infectious disease

Patients should tell their doctor:

• Where they traveled

• Dates of travel

• Activities and exposures

• Foods and water consumed

• Insect bites

• Animal contact

• Vaccinations received

• Medicines taken during travel

This information can significantly help guide diagnostic testing.

Diagnostic Tests in Infectious Disease

Diagnosing infection may require identifying the organism responsible and determining the affected organ or system.

Depending on the suspected condition, investigations may include:

• Complete Blood Count (CBC)

• Inflammatory markers

• Blood cultures

• Urine examination

• Urine culture

• Sputum examination

• Sputum culture

• Stool examination

• Stool culture

• Wound culture

• Viral testing

• Hepatitis testing

• Tuberculosis testing

• Molecular diagnostic tests

• Serological tests

• Liver-function tests

• Kidney-function tests

• Chest X-ray

• Ultrasound

• CT scan

• MRI

• Fluid or tissue sampling

• Other specialized microbiological investigations

Not every patient requires all of these tests. Investigations are selected according to the patient's symptoms and suspected infection.

Cultures & Sensitivity Testing

Culture testing may help identify bacteria or other organisms responsible for an infection.

Samples may be collected from:

• Blood

• Urine

• Sputum

• Wounds

• Stool

• Body fluids

• Other infected sites

Sensitivity testing may then help determine which antimicrobial medicines are more likely to be effective against the identified organism.

Whenever clinically safe and practical, appropriate cultures may be collected before starting or changing antimicrobial treatment.

Infection Prevention

Preventing infection is an important part of healthcare.

WHO describes infection prevention and control as a practical, evidence-based approach to protecting patients and healthcare workers from avoidable infections.

Important measures may include:

• Proper hand hygiene

• Appropriate vaccination

• Safe injection practices

• Appropriate wound care

• Respiratory hygiene

• Food and water safety

• Correct use of personal protective equipment when required

• Appropriate isolation precautions

• Safe management of medical devices

• Responsible antibiotic use

CDC guidance also recognizes contact, droplet, and airborne precautions for infections requiring additional transmission-based measures beyond standard precautions.

Vaccination & Infection Prevention

Vaccination can help prevent many infectious diseases and may also reduce the need for antibiotic treatment by preventing infections in the first place.

Vaccination recommendations depend on:

• Age

• Previous vaccination history

• Medical conditions

• Pregnancy status

• Occupation

• Travel

• Immune status

• Other individual risk factors

Patients should follow vaccination recommendations from their treating physician and relevant public-health authorities.

Coordinated Infectious Disease Care

Infections can affect almost every organ system, so multidisciplinary care is sometimes required.

Depending on the infection, the Infectious Disease Department may coordinate care with:

• General Medicine

• Pulmonology

• Gastroenterology

• Nephrology

• Dermatology

• Neurology

• Cardiology

• Hematology

• Surgery

• Orthopedics

• Critical Care

• Pediatrics

• Gynecology & Obstetrics

• Other relevant specialties

This coordinated approach can be particularly important for complex infections, severely ill patients, recurrent infections, and infections involving more than one organ system.

When Should You Visit an Infectious Disease Specialist?

You may consider Infectious Disease assessment if you have:

• Persistent unexplained fever

• Recurrent fever

• Infection that repeatedly returns

• Infection not responding to treatment

• Resistant bacterial infection

• Recurrent pneumonia

• Persistent or complicated urinary infection

• Persistent diarrhea suspected to be infectious

• Tuberculosis

• Complicated viral infection

• Unusual fungal or parasitic infection

• Infection after travel

• Infection following hospitalization

• Infection after surgery

• Infection involving bone or joints

• Infection in a patient with reduced immunity

• Multiple infections requiring specialist evaluation

• A need for specialist review of antimicrobial treatment

Your general physician or another specialist may also refer you to Infectious Disease when an infection is difficult to diagnose or manage.

When Is Emergency Medical Care Required?

Certain infection-related symptoms require immediate medical assessment.

Seek emergency care for:

• Severe difficulty breathing

• Confusion or altered consciousness

• Very low blood pressure

• Severe weakness or collapse

• Persistent vomiting with severe dehydration

• Rapidly spreading skin infection

• Severe headache with neck stiffness and fever

• Seizure associated with fever or infection

• Significant reduction in urine output

• Severe abdominal pain with fever

• High fever with rapidly worsening condition

• Suspected sepsis

Severe infection can deteriorate quickly, so emergency symptoms should not wait for a routine outpatient consultation.

Long-Term Infectious Disease Care

Some infections resolve completely after a short course of treatment, while others require prolonged therapy and ongoing monitoring.

Regular Infectious Disease follow-up may help physicians:

• Monitor treatment response

• Review cultures

• Review laboratory results

• Adjust antimicrobial treatment

• Monitor medication side effects

• Evaluate recurrent symptoms

• Manage prolonged infections

• Monitor resistant organisms

• Coordinate care with other specialists

• Reinforce infection-prevention measures

At AS Medical Complex, our aim is to provide continuity of care from initial assessment through diagnosis, treatment, monitoring, and recovery.