Welcome Note

Dear Colleagues and Friends,

It is a great pleasure to invite you to the upcoming 4th Congress of the International Society for Infectious Diseases in Obstetrics and Gynecology, ISIDOG, to be held between 14th and 17th October, 2021 in Budapest, Hungary. 

Due to the challenges of the global Sars-COV-2 pandemic and the still unknown proportion  of vaccinated percentage by the time of our scheduled meeting, new methods of organization of our congress had to be introduced. Thus, a hybrid meeting will be organized with members of the Board of ISIDOG on site, and those having interest in the magic world of infectious diseases in obstetrics and gynecology either in person in Budapest or in front of the screens. Certainly, this novel frame of meeting needs a great deal of openness and flexibility from both participants and organizers in order not to miss the regular scientific platform to discuss new challenges in our field. Also the continued and unconditional support of our sponsors is crucial and most welcome. The structure of the conference is based on our familiar structure with a pre-congress National Day on 14th October held in Hungarian, followed by two days of the core ISIDOG meeting. On day 2 and 3 plenary sessions by invited speakers, lunch symposia, free communication and poster session will be presented. On Sunday an extremely exciting Science-Meets the Industry meeting will be organized.

What else could be the main topic of the 4th ISIDOG Congress in 2021 than Sars-COV-2 infections before, during and after pregnancy?

Additional topics include diagnosis and treatment of lower genital tract infections, role of non-antibiotic treatment of vaginal disorders, an update on Candida vaginitis, sexually transmitted viral and bacterial infections and latest data on HPV vaccination.

Pharma industry will find a wide spectrum of communication with the congress participants via online tools including short films, videos and web links to their new products and procedures. In addition, round table discussions for new drugs, antibiotics and novel treatment protocols as well as diagnostic methods will also be available.

On behalf of the Board of ISIDOG and the Hungarian Society of Obstetricians and Gynecologists as local organizer we truly hope that old and new friends of infectious diseases in obstetrics and gynecology will be motivated and enthusiastic to find a new occasion for get together and discuss latest data for the sake of women’s health.

Look forward to greeting you in Budapest,

Prof. Dr. István Sziller
Congress Organizing Committee
Prof. Dr. Gilbert Donders
President of ISIDOG

General Information


Hungarian Society for Obstetrics and Gynecology

Organizing Committee

Prof. G. Donders
Dr. P. Greenhouse
Prof. W. Mendling
Prof. L. Petricevic
Prof. D. Rezeberga

Local Organizing Committee

Prof. I. Sziller
Dr. Zs. Melczer
Dr. E. Balla
Dr. V. Karaszi
Dr. A. Ujhazy

CME Accreditation

The ISIDOG 2021, Budapest, Hungary 14/10/2021-17/10/2021 event has been accredited by the European Accreditation Council for Continuing Medical Education (EACCME®) for a maximum of 11 European CME credits. (ECMEC®s). Each medical specialist should claim only those hours of credit that he/she actaully spent in the educational activity.

Main Topics

  1. COVID infection before, during and after pregnancy

  2. COVID infection and fertility

  3. Vaginal microbiome in health and disease

  4. HPV vaccination – update

  5. Candida vaginitis – update

  6. Intra-amniotic infection caused by bacteria and viruses 

  7. Chronic recurrent infections in out-patient gynecology

  8. Bacterial STI’s

  9. Miscellaneous

COVID Information

We would like to call your attention, that based on the current Hungarian regulations attendance to live indoor events is limited to participants who present their valid COVID certificate and identity card. Please, prepare your documents and show them at the congress registration desk.  

Abstract Guide

  1. Please indicate whether your paper has been submitted for publication or has been published.

  2. Abstracts received within the deadline will be published in the abstract book.

  3. Abstracts should be limited to 3000 characters, and may include a table or figure.

  4. List the names of the authors, with affiliation, specify the presenting author.

  5. Use structured abstract headings: Introduction/Aim – Methods/Patients – Results - Discussion

  6. Abstracts should have no more than 6 references (to be counted in the maximum number of characters).

  7. Abstract deadline August 15, 2021.

  8. For presentation only slides with PC-compatible technology (MS Powerpoint) will be accepted.

  9. Your abstract can only be considered after you registered and paid for the conference.

Scientific program

Thursday 14 October 

09.00-17.00ISIDOG Hungary Educational Day (in Hungarian) 
Session 1


Friday 15 October 

08.30-09.15Session 2:
Free Oral Communications #1 (Pregnancy) 
09.30-10.45Session 3:
Obstetric & Neonatal Microbiology
11.00-12.15Session 4:
Prevention of Materno-Fetal Infection 
12.30-13.30Session 5:
Lunch Symposium by Medinova 
14.00-15.15Session 6:
Free Oral Communications #2 (Vaginitis) 
15.30-16.45Session 7:
Vulvo-Vaginal Infections #1 
17.00-18.15Session 8:
Vulvo-Vaginal Infections #2 

Saturday 16 October 

08.30-09.45Session 9:
Free Oral Communications #3 (Candida etc.)
10.00-11.30Session 10:
Sexually Transmitted Infections 
11.45-12.45Session 11:
Lunch Symposium by Bayer 
13.00-14.00Session 12:
Lunch Symposium by Gedeon Richter 
14.15-15.30Session 13:
Pro- and Pre-Biotics 
15.45-17.00Session 14:
COVID impact on Women’s Health

Sunday 17 October 

09.30-12.30Session 15:
Science meets Industry 

Thursday 14 October 

ISIDOG Hungary Educational Day (in Hungarian)

Organiser:  Prof. Istvan Sziller (HU) 

Session A: COVID in Pregnancy

Chair: Prof. Istvan Sziller (HU)

Management of severe COVID infection in pregnancy 
Nandor Acs (Budapest, HU) 
COVID vaccination in pregnancy and the puerperium 
Zsolt Melczer (Budapest, HU) 
Impact of maternal COVID on the placenta 
Zsofia Zolnai (Budapest, HU) 

Session B: Infection during Pregnancy 

Chair: Eszter Balla 

Prevention of pre-term birth 
Udo Hoyme (Erfurt, DE) 
Immunization in Pregnancy 
Marta Csire, Artur Beke (Budapest, HU) 
Lymphocytic choriomeningitis in neonates 
Orsolya Nagy (Budapest, HU

Session C: HPV Vaccination 

Chair: Zsolt Melczer  

Symposium sponsored by MSD
Indications for HPV Vaccination in 2021 

Robert Koiss (Budapest, HU) 
Local treatment of cervical HPV 
Gabor Sobel (Budapest, HU) 
RNA-based HPV diagnostics
Kiarash Bahremand (Budapest, HU) 
Relationship between patients HPV screening results and their cytological findings
Balazs Hamar (Budapest, HU) 

Session D: Vaginal Infections 

Chair: Viktoria Karaszi 

Pathogenesis of recurrent vaginal infections 
Magdolna Gaal (Szeged, HU) 
Coitally-associated recurrent vaginal infection 
Andras Ujhazy (Budapest, HU) 
Symposium sponsored by Bausch Health   
Treatment of vaginal infections without antibiotics 

Zsolt Melczer (Budapest, HU) 

Session E: STI 

Chair: Andras Ujhazy 

Congenital syphilis: national data & laboratory diagnosis 
Eszter Balla (Budapest, HU) 
Syphilis in non-pregnant women 
Viktoria Varkonyi (Budapest, HU)
Inpatient management of Pelvic Inflammatory Disease  
Istvan Sziller Istvan (Budapest, HU) 
The first female case of LGV in Hungary 
Toth Bela (Budapest, HU)


Session 1: OPENING  

Chair: Prof. Gilbert Donders (BE) ISIDOG President

Welcome Introduction
Gilbert Donders (BE) & Istvan Sziller (HU) 
Laudatio - Bill Ledger 
Steven Witkin (US) 
Keynote Lecture: How COVID affects Gynecology & Medicine
Marleen Temmerman (Kenya)

Welcome Reception 

ISIDOG Board & Speakers’ Dinner 

Friday 15 October 

Session 2:  Free Oral Communications #1 (Pregnancy) 

Chair: Prof. Ljubomir Petricevic (AT)

F.1 Mixed vaginitis in 3rd trimester of pregnancy is associated with adverse pregnancy outcomes: A cross-sectional study.   
Li Huanrong,  Xue Fengxia (Tianjin, PRC)  
F.2 Do pregnant women with obstetric medical history have a vaginal microbiome associated with higher recurrence risk of preterm birth?  
Sanne Laurijssen, Gilbert Donders, Yves Jacquemyn, Sarah Lebeer (Antwerp, BE) 
F.3 In-vitro study of polybacterial infection of chorioamniotic membranes: modulation of immune response at maternal-fetal interface.
Giovana Bento
, Mariana de Castro Silva, Geovanna Cristofani Cursino, Carolina Santimaria Rampazzo, Guiherme Nastaro, Jossimara Polettini, Marcia Guimarães da Silva (São Paolo, BR) 

Session 3: Obstetric & Neonatal Microbiology 

Chairs: Prof. Dace Rezeberga (LV) , Prof. Daniel Surbek (CH) 

Marian Kacerovsky (CZ)
Vaginitis/Vaginosis in pregnancy in East Congo 
Lisa Himschoot (BE)
Vaginal viruses in pregnancy 
Steven Witkin (US) 
Caesarean section, microbiome & childhood development 
Daniel Surbek (CH)  

Session 4: Prevention of Materno-Fetal Infection

Chair: Prof. Istvan Sziller (HU)

Mycoplasma genitalium in women in Germany 
Anja Potthoff (DE)
Maternal immunization  
Kirsten Maertens (BE) 
SARS-CoV-2 vaccination 
Svitrigaile Grinceviene (LT) 
Clinical conundrum: Two maternal sepsis deaths 
Peter Greenhouse (GB) 

Session 5: Lunch Symposium sponsored by Medinova 

Update on “ProPreB” trial 
Prof. Gilbert Donders (BE) 
Management of abnormal flora in pregnancy  
Prof. Daniel Surbek (CH) 

Session 6: Free Oral Communications #2 (Bacterial Vaginitis) 

Chair: Dr. Peter Greenhouse (GB) 

F.4 Aerobic Vaginitis diagnosis criteria combining Gram stain with clinical features: An establishment and prospective validation study      
Dong Mengting (Tianjing, PRC) 
F.5 Vaginal microbial profiles of Aerobic Vaginitis: A case-control study      
Wang Chen (Tianjing, PRC) 
F.6 Characteristics & diagnostic ability of vaginal microflora in patients with Aerobic Vaginitis: A comparative study with 16S-RNA sequencing   
Zeng Zhen, Zhang Qiongqiong, Zhang Lei (Beijing, PRC) 
F.7 Cervicovaginal load of Gardnerella spp. is increased in immunocompetent women with persistent high-risk HPV Infection
Rafael Belleti, Larissa Doddi Marcolino, Juliano Novak, Carolina Sanitá Tafner Ferreira, Aline do Nascimento Bolpetti, Gabriel da Silva Pinto, Gabriel Vitor, Ana Cristina Palmeira de Oliveira, Marcia Guimarães da Silva, Camila Marconi (São Paolo, BR) 
F.8 Association of vaginal microecology and Cervical Intraepithelial Neoplasia among reproductive women with high-risk HPV Infection.      
Li Huiyang, Xie Wenjuan, Dong Mengting (Tianjing, PRC) 
F.9 The use of menstrual cups is associated with the maintenance of healthy vaginal microbiota.      
Bruna Ribeiro de Andrade Ramos, Júlia Abbade Tronco, Jeniffer Sena Baptista Ferreira, Mariana de Castro Silva, Mariana Alice de Oliveira Ignácio, Beatriz Cassolatti Graciolli, Marli Terezinha Cassamassimo Duarte, Márcia Guimarães Da Silva (São Paolo, BR) 

Session 7: Vulvo-Vaginal Infections #1 

Chair: Prof. Gilbert Donders (BE)  

Clinical recommendations on mixed vaginitis 
Qi Wenhui (PRC) 
Lichen sclerosus and vulvodynia
Werner Mendling (DE) 
Treatment options for bacterial vaginosis 
Jack Sobel (US) 

Session 8: Vulvo-Vaginal Infections #2 

Chair: Prof. Werner Mendling (DE)  

What can we learn from vaginal microbiome analysis? 
Sarah Lebeer (BE) 
Isala project: citizen-science mapping of the vaginal microbiome structure and determinants
Sarah Ahannah (BE)  
Aerobic Vaginitis as an immune disorder 
Werner Mendling (DE) 

Evening Boat Trip & Dinner Dance on the Danube

(Non-Hybrid only, with apologies to online participants)

Saturday 16 October 

Session 9: Free Oral Communications #3 (Candida & Other) 

Chair: Prof. Gilbert Donders (BE) 

F.10 Advances in vaginal microecology theory in the application of vulvovaginal candidiasis.   
Ma Xiaotong (Tianjing, PRC) 
F.11 Candida biofilms in vulvovaginal candidiasis.  
Carmen Rodriguez-Cerdeira, Roberto Arenas (Vigo, ES) 
F.12 Three phase 3, randomized, double-blind, placebo-controlled studies to evaluate the efficacy and safety of Oteseconazole (Vt-1161) oral capsules in subjects with recurrent vulvovaginal candidiasis. 
Gilbert Donders, Jack Sobel, Mark Martens, Bassem Maximos, Mahmoud Ghannoum, Amy Flynt, Thorsten Degenhardt, Karen Person, Stacey Curelop, Stephen Brand (Antwerp, BE) 
F.13 Efficacy and safety of oral Ibrexafungerp in subjects with vulvovaginal candidiasis: Pooled data analysis from two phase 3, randomized, blinded, studies vs. placebo (VANISH-303 and VANISH-306).
Nkechi Azie, David Angulo (US) 
F.14 Dyspareunia in women: is it always vulvodynia?  
Jente Reumers, Gilbert Donders, Francesca Donders (Tienen, BE) 

Session 10: Sexually Transmitted Infections  

Chairs: Dr. Peter Greenhouse (GB), Dr. Tatiana Ivanova-Rumantseva (RF) 

Access to STI & HIV testing during the COVID-19 restrictions 
Dace Rezeberga (LV) 
HPV and fertility 
Christophe Depuydt (BE) 
Rectal & extra-genital chlamydial infection - “FemCure” Study            
Nicole Dukers-Muijrers (NL) 
HPV and genital cancer in LBGTQIA+ populations 
Mikael Skerlev (HR) 
Sex parties and STI prevalence 
Tatiana Ivanova-Rumantseva (RF) 

Session 11: Lunch Symposium sponsored by Bayer  

Vaginal and gut microbiome – a cross talk 
Prof. Werner Mendling (DE) 
Managing women with recurrent bacterial vaginosis: how does the VITA trial (lactic acid gel versus metronidazole) help inform practice
Prof. Jonathan Ross (GB) 

Session 12: Lunch Symposium sponsored by Gedeon Richter

RVVC: Towards an optimised diagnosis 
Prof. Istvan Sziller (HU)
RVVC: Towards an optimised therapeutic approach
Prof. Gilbert Donders (BE) 

Session 13: Pro- and Pre-Biotics 

Chairs: Prof. Ljubomir Petricevic (AT), Prof. Sarah Lebeer (BE) 

Antifungals versus probiotrics against candidal vaginitis?
Sarah Lebeer (BE) 
Do oral probiotics influence the vaginal microbiome? 
Ljubomir Petricevic (AT) 
Testing of pre- and pro-biotic treatments
Joana Rolo (PT)
Gardenella-specific endolysin treatment of metronidazole-resistant and clindamycin-tolerant bacterial vaginosis  
Lorenzo Corsini (IT) 

Session 14: COVID impact on Women’s Health 

Chairs: Prof. Gilbert Donders (BE), Prof. Istvan Sziller (HU) 

COVID and sperm 
Jente Reumers (BE) 
ISIDOG guidelines for COVID in pregnancy 
Francesca Donders (BE) 
COVID and the placenta 
Zsofia Zolnai (HU) 
Impact of social media & COVID on STI epidemiology 
Peter Greenhouse (GB) 

Conference Closing Ceremony and Awards ISIDOG Board 

Sunday 17 October 

Session 15: Science meets Industry 

Open discussion session with sponsors led by ISIDOG Board members 


Registration Fees

(inlcuding Hungarian VAT, 27%)

Registation feeEUR 180EUR 250
Registration fee for ISIDOG membersEUR 125EUR 180
Pre-Congress registration fee (for Hungarian day)EUR 50EUR 50
Registration fee for residents, nursesEUR 75EUR 120
Reduced registration fee (dedicated countries only)EUR 75EUR 120
Lunch on 15th October
-EUR 23
Lunch on 16th October
-EUR 23

Registration Fee Includes

  • access to all sessions
  • digital handbook and abstract book
  • recordings on-demand after the event till 31 December 2021
  • access to virtual or live exhibition floor
  • coffee breaks for Onsite participants
  • CME points 


  • by credit card
  • bank transfer


Danubius Hotel Helia (congress venue)
1133 Budapest Kárpát u. 62-64., Hungary  |  Phone: +36-1-889-5900
Standard room for 1 person with breakfast and VAT90 EUR /room /night
Standard room for 2 person with breakfast and VAT100 EUR /room /night
Additional charges for other services
Danube River panorama10 EUR /room /night
Room with balcony20 EUR /room /night
Parking10 EUR /car /day
Booking form to be found at the Downloads section



Notice of cancellation must be received in writing before October 1, 2021. EUR 25 administrative fee is nonrefundable.  No refunds will be administered after October 1, 2021.  The cancellation policy is further defined on registration site in the Terms and Conditions.

Sponsorship & Virtual Exhibit Opportunities


For sponsorship & virtual exhibitor inquiries, please contact:

Ms. Katalin Vámos
Key account manager

Phone: (+36 30) 576 6031

Scientific Information

Prof. István Sziller

Congress Office

Convention Budapest Ltd.
H-1143 Besnyői street 13. 1st. floor
Budapest, Hungary
Phone: (+36 1) 299 0184, 299 0185
Fax: (+36 1) 299 0187