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Allergology and Clinical Immunology at Gennet

Our clinics in Prague 1 and Prague 7 provide full diagnostic workup and treatment for allergies, including drug allergies, and for immune disorders, including immune-related causes of infertility. Close cooperation with our clinical genetics and IVF teams means follow-up care can be arranged without unnecessary delays.

 

Book an Initial Consultation
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Why Trust Us With Your Care

All Care in One Place

The diagnosis and treatment of allergies, immune disorders, and reproductive immunology are all handled within our own well-equipped clinic.

 

A Team You Can Trust

Your care is led by experienced specialists with a personal, attentive approach.

Coordinated Care Across Specialties

We work closely with our IVF centre, the genetics department, and other specialists, which keeps treatment fast and effective.

Contracts With All Health Insurance Funds

Care is covered by Czech public health insurance, although some services and medicines may not be fully reimbursed.

Frequently Asked Questions

How can I book an appointment for the initial consultation?
  • Allergology and Immunology

It depends on where you are coming from and what you are interested in.

If you have been referred by another Gennet physician (from IVF or genetics), the appointment will be arranged directly by the nurses.

If you are coming from outside, please fill in the contact form and specify the reason for your visit. A nurse will usually contact you by phone within a week to arrange an appointment. In cases of suspected drug allergy, we first request medical documentation. Each case is assessed individually, and only then is the appointment confirmed.

Prefer direct contact? Call our call centre (+420 222 313 000, allergology) or email alergologie@gennet.cz.

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Do I need to reschedule my appointment or arrange a follow up?
  • Allergology and Immunology
I am already under your care and would like advice. Is a consultation sufficient?
  • Allergology and Immunology

Message or call us. A nurse will assess your situation and recommend whether a phone consultation is sufficient or if an in person visit is appropriate.

 

What should I bring to my first appointment?
  • Allergology and Immunology
  • Bring your health insurance card, ID, and a referral from your doctor. Also bring any medical reports related to your condition.
  • IVF patients: a report from your gynecologist or IVF specialist and results of previous tests (sperm analysis, genetic consultation, previous immunological tests).
  • Patients with allergies: reports from previous clinics.

Are you coming for testing of airborne allergies such as pollen, dust mites, animals, or mould? If your health condition allows, please stop taking oral antihistamines one week before the test. Do not discontinue any other medication. You do not need to come fasting.

What happens during the first appointment?
  • Allergology and Immunology

Please allow 60 to 90 minutes for your first visit. The doctor will take a detailed medical history, including family, personal, gynecological, occupational, and allergy history. You will be asked about medications, pets at home, smoking, and the course of your symptoms.

If needed, this may be followed by skin tests, lung function testing, or a blood draw. At the end, you will receive a medical report with clear recommendations for the next steps.

Is the examination covered by health insurance?
  • Allergology and Immunology

Yes, we are contracted with all health insurance companies in the Czech Republic. For self paying patients, our current price list is available.

More information can be found in our price list.
Do you treat children as well?
  • Allergology and Immunology

We primarily focus on adult patients. Some of our physicians also treat children, but capacity is significantly limited. For more information, please contact us.

Read More FAQs Contact us
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In allergology and clinical immunology we start with a careful clinical history and rational diagnostic work. Specialised tests are chosen with intent, only where they will actually change treatment. Our priority is the patient's safety, an accurate diagnosis, and a practical plan, whether the issue is drug hypersensitivity, seasonal allergy, or an immune disorder. Close cooperation with colleagues in other specialties allows us to offer connected, complete care without unnecessary delays.

MUDr. Lenka Sedláčková, Head of the Programme

Allergology and Clinical Immunology

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Our department cares for patients with allergies, drug hypersensitivity, and immune disorders, from the first suspicion through to long-term follow-up. Our work is careful diagnostic assessment, a clear explanation of the results, and a treatment plan that makes sense to you.

Close cooperation with the other specialties at Gennet (clinical genetics, IVF) means everything important can be taken care of in one place.

 

Book a Consultation

Suspected Drug Allergy

A reaction to a medicine can complicate treatment, but with the right diagnostic work we can tell most patients reliably which medicines are safe for them.

When Is It Time to Look Into a Suspected Drug Allergy?

  • After a reaction such as a rash, swelling, breathlessness, hives, or loss of consciousness following a medication.
  • After repeated trouble with the "same" or related medicines.
  • If your records show an "allergy" (for example to penicillin) that has never been reliably confirmed.

Our Diagnostic Approach

We Listen to Your Story (Clinical History)
Laboratory Tests From Blood
Skin Tests
Exposure (Provocation) Tests

We Listen to Your Story (Clinical History)

What actually happened is the key. We ask about the exact name of the medicine, the time between dosing and the reaction, the symptoms, and what treatment was given. The other medicines you take and your overall health are also important.

Laboratory Tests From Blood

We perform them in selected drug classes for certain acute reactions such as itching, urticaria, and anaphylaxis.

Skin Tests

This is the primary diagnostic tool for medications with a typical allergic mechanism, such as penicillins.

Exposure (Provocation) Tests

This is the most accurate method for safely ruling out an allergy or confirming tolerance to an alternative medication. It is performed only after careful consideration and in patients at low risk.

What Will the Workup Tell You?

What Will the Workup Tell You?

Our goal is to identify which medicines you can take without concern and which to avoid in the future.

The Most Common Myths

We Test "Allergies" You May Not Actually Have

 

Myth 1: Allergy to Penicillin Antibiotics

Many people have an "allergy to penicillin" recorded in their notes unnecessarily, but on testing only a small fraction turn out to be truly allergic. The label leads to the use of less suitable antibiotics.

The standard approach: a careful clinical history, then skin and laboratory tests, and where the risk is low, drug provocation testing to remove the false label. When the likelihood of a real allergy is very low, the skin and laboratory tests can be skipped and only the provocation test performed.

 

Myth 2: Reactions to Local Anaesthesia (at the Dentist)

A genuine allergy here is rare. The symptoms (weakness, palpitations) are more often caused by stress. We can assess the risk and test the specific anaesthetic so that you can feel confident next time.

Myth No. 3: “Iodine Allergy” and Contrast Media

This is not an allergy to the element iodine itself. Reactions to iodine-based disinfectants and reactions to iodinated contrast media are not connected. Modern contrast media are far safer, and with testing or preventive medication we can make sure the examination is safe for you.

Our Team of Doctors and Specialists

The success of treatment rests on people. Get to know the specialists who will look after you.

 

Meet Our Team
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MUDr. Lenka Sedláčková

Head Physician of the Allergology and Clinical Immunology Programme

  • Gennet Prague 1
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  • Head Physician of the Allergology and Clinical Immunology Programme

MUDr. Lenka Sedláčková

She obtained her specialist certification in allergology and clinical immunology in 2004. Until 2020, she worked at Na Homolce Hospital as Head Physician of the Immunology Laboratory within the Department of Clinical Biochemistry, Haematology and Immunology, and as a physician at the outpatient clinic of the Centre for Allergology and Clinical Immunology. Her work also included consultations in allergology and clinical immunology for inpatient departments of the hospital. She introduced and developed comprehensive diagnostics of drug allergies using laboratory, skin and provocation tests. She is a member of the committee of the Czech Society of Allergology and Clinical Immunology of the Czech Medical Association of Jan Evangelista Purkyně. Since 2013, she has led the ČSAKI Working Group for Drug Allergies. She is also a member of the committee of the ČSAKI Section of Laboratory Immunology, as well as a member of the European Academy of Allergy and Clinical Immunology, the European Network on Drug Allergy, ENDA, and the American Society for Reproductive Medicine.
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MUDr. Karin Černá

Physician of the Allergology and Clinical Immunology Department

  • Gennet Prague 1
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  • Physician of the Allergology and Clinical Immunology Department

MUDr. Karin Černá

Dr. Karin Černá has worked at the Allergy and Clinical Immunology department at GENNET since 2015. She graduated from the 1st Faculty of Medicine, Charles University in Prague in 1992. After graduation she joined the Immunology Unit of the Institute of Pulmonary Diseases in Prague–Bulovka, and after two years moved to the General University Hospital Prague (VFN). As a secondary doctor, she also worked at the 1st Internal Clinic of VFN and 1st Faculty of Medicine; she later worked as a specialist physician in the Institute of Immunology and Microbiology of VFN and 1st Faculty of Medicine. From 2013‑2017 she served as Head of the Laboratory of Clinical Immunology and Allergology at the Institute of Medical Biochemistry and Laboratory Diagnostics of VFN and 1st Faculty of Medicine UK. From 2017 she also worked as a clinical immunologist at the Iscare Clinical Centre. She passed her first attestation in Internal Medicine in 1995, and her second specialised attestation in Allergology and Clinical Immunology in 2001. She is author and co‑author of more than 100 lectures and publications, co‑author of 7 monographs, and has participated in numerous grant projects. She is a member of the Czech Society of Allergology and Clinical Immunology (ČLS JEP). 
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MUDr. Tomáš Slisz

Physician of the Allergology and Clinical Immunology Department

  • Gennet Prague 1
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  • Physician of the Allergology and Clinical Immunology Department

MUDr. Tomáš Slisz

MUDr. Tomáš Slisz graduated from the 2nd Faculty of Medicine of Charles University in Prague. He then worked as a physician at the Department of Allergology and Clinical Immunology of the Department of Pneumology of the 1st Faculty of Medicine of Charles University and Thomayer University Hospital in Prague. During his practice, he obtained his specialist certification in Allergology and Clinical Immunology in 2022. He regularly publishes scientific articles in prestigious Czech and international medical journals and lectures at national and international congresses. He also participates in the education of future physicians at the 1st Faculty of Medicine of Charles University in Prague. MUDr. Slisz is a member of the European Academy of Allergy and Clinical Immunology, EAACI, and the Czech Society of Allergology and Clinical Immunology. He has been a member of the Gennet clinic team since 2023.
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MUDr. Lucie Hoftová

Physician of the Allergology and Clinical Immunology Department

  • Gennet Prague 1
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  • Physician of the Allergology and Clinical Immunology Department

MUDr. Lucie Hoftová

Dr. Lucie Hoftová graduated in General Medicine at the 1st Faculty of Medicine, Charles University in Prague. She obtained her internal medicine practice at Mělník Hospital and completed her internal medicine training. Since 2023 she has devoted herself intensively to the field of Allergology and Clinical Immunology. She works at the GENNET clinic under the supervision of Dr. Lenka Sedláčková and is preparing for her attestation exam. 
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MUDr. Jana Emlerová

Physician of the Allergology and Clinical Immunology Department

  • Gennet Prague 1
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  • Physician of the Allergology and Clinical Immunology Department

MUDr. Jana Emlerová

MUDr. Jana Emlerová has been a physician at the Allergology and Clinical Immunology outpatient clinic of Gennet since 2023. She graduated from the 1st Faculty of Medicine of Charles University in Prague in the field of General Medicine. She passed her specialist certification examination in Allergology and Clinical Immunology in 2019.

She began her practice at the Department of Neurology of Na Bulovce Hospital, later worked at the 2nd Department of Internal Medicine of the University Hospital Královské Vinohrady, and also gained experience in the private practice of MUDr. Přemysl Rákosník, specialising in allergology, immunology, pneumology and internal medicine.

She completed a one year course in medical English at the University of Sussex. In 2026, she received the Professor Václav Špičák Award for the best case report in the journal Alergie. In 2026, she also completed her MHA studies in Healthcare Management.
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MUDr. Petra Králová

Physician of the Allergology and Clinical Immunology Department

  • Gennet Prague 1
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  • Physician of the Allergology and Clinical Immunology Department

MUDr. Petra Králová

Dr. Petra Králová completed secondary education at Aiglon College in Switzerland, where she achieved a Matura in Mathematics, Physics and Chemistry. In 2008 she graduated from the 3rd Faculty of Medicine at Charles University in Prague. 

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We Will Get Back to You Within a Few Days

The contact form is intended for new patients only. Existing patients are kindly asked to communicate by e-mail at alergologie@gennet.cz.


We greatly appreciate your interest in making an appointment at our allergy and clinical immunology outpatient clinic. At present, our capacity is significantly limited, especially for patients with allergies.

Once capacity becomes available, we will be pleased to welcome you.
A referral from a general practitioner or another referring physician is required for the examination.
Thank you for your understanding.

The team of doctors and nurses
Gennet Allergy and Clinical Immunology Outpatient Clinic

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