Infectious Diseases Specialist in Melbourne
Infectious diseases medicine focuses on illnesses caused by bacteria, viruses, fungi and parasites, as well as the complex medical problems that can arise when an infection is persistent, recurrent, difficult to diagnose or occurring in a person with a weakened immune system. While many everyday infections can be managed effectively by a GP, specialist assessment can be valuable when the diagnosis is uncertain, standard treatment has not worked or the patient has other medical conditions that increase the risk of complications.
The service includes particular expertise in infections affecting immunocompromised patients, diabetic foot infections, tuberculosis, hepatitis and HIV medicine, antimicrobial stewardship and complex general medicine. Its multidisciplinary setting is especially valuable for people receiving cancer or haematology treatment, while referrals are also welcomed for infectious diseases and general medical problems unrelated to cancer.
People with weakened immune systems can develop infections more easily, may have less typical symptoms and can become unwell more quickly. Immune suppression may be related to chemotherapy, blood cancers, corticosteroids, immune-modifying medicines, transplantation or other medical conditions. Assessment considers the likely source of infection, the degree and type of immune suppression, previous antimicrobial exposure and the possibility of less common organisms.
Management may involve targeted blood tests, cultures, imaging, changes to antimicrobial treatment and coordination with the treating haematologist or oncologist. Prevention is also important and may include vaccination advice, antimicrobial prophylaxis in selected situations and planning around periods when immune function is expected to be at its lowest.
Cancer treatment can increase infection risk by lowering neutrophils, damaging skin or mucosal barriers, suppressing immune function or requiring intravenous access devices. Some infections can initially resemble treatment side effects, while some treatment toxicities can resemble infection. Close communication between infectious diseases, oncology and haematology can therefore be particularly useful when the cause of fever or deterioration is not immediately clear.
Fever in a person who is neutropenic after anti-cancer treatment can represent a medical emergency and requires prompt assessment through the urgent pathway provided by the treating cancer service. Patients who are acutely unwell should not wait for a routine infectious diseases appointment. Once the immediate episode has been treated, infectious diseases input may help with recurrent infection, unusual organisms, prolonged antimicrobial therapy, prevention strategies or decisions about when cancer treatment can safely continue.
Some patients are referred because an infection keeps returning, has not responded as expected to treatment or remains difficult to localise. The problem may relate to an organism that is resistant to usual antibiotics, an undrained collection, an underlying structural problem, reduced immunity or a diagnosis that is not actually infectious. Repeated courses of antibiotics without establishing the cause can sometimes make the picture more complicated.
An infectious diseases assessment reviews the timeline carefully, including previous cultures, imaging, antimicrobial treatments and response. The aim is to decide whether further microbiological testing, imaging, biopsy or another specialist opinion is needed, and to use antimicrobial treatment only when there is a clear clinical reason.
Diabetic foot infection can occur when a wound or ulcer becomes infected, particularly when diabetes has also affected circulation or sensation. These infections can involve skin and soft tissue and, in more significant cases, extend to bone. Good care often requires more than antibiotics alone: wound management, pressure off-loading, vascular assessment, diabetes control, imaging and surgical or podiatry input may all be relevant.
Specialist infectious diseases assessment can help determine the severity of a diabetic foot infection, interpret microbiology results and guide antimicrobial treatment as part of a multidisciplinary plan. Other complex skin and soft-tissue infections can be approached in a similar way, with attention to whether drainage, debridement or another procedure is required.
Tuberculosis (TB) is caused by Mycobacterium tuberculosis and most commonly affects the lungs, although it can involve many other parts of the body. Assessment may be required after an abnormal screening test, exposure to TB, suggestive imaging or symptoms such as persistent cough, fevers, night sweats or unexplained weight loss. The distinction between latent TB infection and active TB disease is important because the investigations, public-health implications and treatment are different.
Other non-tuberculous mycobacterial infections can occur in people with chronic lung disease, structural disease or reduced immunity. These infections often require prolonged treatment and careful interpretation of microbiology because the organism may represent colonisation rather than true disease.
Chronic viral infections such as hepatitis B, hepatitis C and HIV can require specialist assessment, treatment and longer-term monitoring. Modern antiviral therapy has transformed the outlook for these conditions, but management still needs to consider liver health, immune function, medication interactions, transmission prevention and other medical conditions.
This is particularly relevant before some cancer or immune-suppressing treatments. For example, previous or current hepatitis B infection may influence the need for antiviral prophylaxis and monitoring when immune-suppressing therapy is planned. Infectious diseases input can help coordinate these issues with the treating haematologist or oncologist.
Antimicrobial stewardship means using antibiotics and other anti-infective medicines in a way that treats infection effectively while reducing unnecessary exposure, adverse effects and antimicrobial resistance. The narrowest effective treatment, correct dose and appropriate duration depend on the suspected organism, infection site, microbiology results, kidney and liver function and the patient’s wider medical circumstances.
Specialist advice can be useful when prolonged intravenous or oral treatment is being considered, cultures identify resistant organisms, previous antibiotics have failed, medication interactions are important or there is uncertainty about whether antibiotics are required at all. Where long courses are necessary, monitoring can be planned for treatment toxicity and response.
Infectious diseases assessment usually begins with a detailed history of symptoms, previous infections, travel and exposure history, immune status, recent hospital admissions, operations, devices such as intravenous lines, and all antimicrobial medicines already used. Previous microbiology results are especially useful because the pattern of organisms and antibiotic sensitivities can change the investigation and treatment plan.
Investigations are selected according to the clinical problem and may include blood tests, blood or urine cultures, swabs, respiratory samples, serology, molecular tests, imaging or occasionally tissue sampling. Some infections require close collaboration with radiology, surgery, respiratory medicine, gastroenterology or other specialties to obtain the right diagnostic sample or address an underlying source.
Treatment is tailored to both the infection and the person. Antibiotics, antiviral medicines, antifungal treatment or antiparasitic medicines may be prescribed when appropriate, but not every fever or inflammatory result is caused by infection and not every positive culture requires treatment. Part of specialist infectious diseases care is deciding when antimicrobial therapy is necessary, when it can be safely narrowed or stopped, and whether another diagnosis should be considered.
The combination of infectious diseases and general medicine expertise is particularly useful when infection occurs alongside other medical problems. Kidney function, diabetes, heart or lung disease, anticoagulation, medication interactions and frailty can all influence the safest treatment choice. For patients undergoing cancer or haematology care through Northern Blood & Cancer Care, this broader medical perspective also allows infection management to be coordinated with the timing and risks of anti-cancer treatment.
A specialist infectious diseases opinion may be useful when:
If you are receiving chemotherapy or other immune-suppressing cancer treatment and develop fever or become acutely unwell, follow the urgent-care instructions provided by your treating team. Neutropenic fever can deteriorate rapidly and should be assessed urgently rather than through a routine outpatient appointment.
Please bring a current referral, a complete medication list and any relevant pathology, microbiology and imaging results. If you have previously been treated for the same infection, details of the antibiotics or other anti-infective medicines used, how long they were taken and whether symptoms improved are particularly useful. Hospital discharge summaries, operative reports and information about implanted devices or recent procedures may also help.
If the consultation relates to cancer or haematology treatment, please bring details of the treatment regimen and the contact information for the treating specialist if this is not already available to Northern Blood & Cancer Care. The infectious diseases physician can then consider the infection in the context of the broader treatment plan and communicate with the other clinicians involved where appropriate.
The infectious diseases specialists associated with this service include:
For patients with complex infection, the diagnosis is only part of the picture. Northern Blood & Cancer Care combines dedicated infectious diseases and general medicine expertise with direct access to haematology and medical oncology colleagues, while coordinating other specialist or supportive services when needed. This helps bring infection management into the broader treatment plan when immune suppression, cancer treatment or other medical conditions make care more complex.
Northern Blood & Cancer Care brings together a highly experienced team of haematologists, medical oncologists and specialist physicians, with consultations available at Northern Private Hospital in Epping.
Contact our team to arrange an appointment or discuss a referral.
