Research Interest: Pre-treatment staging of lung cancer using integrated CT-PET and comparing its accuracy with conventional CT scan and pathological staging. Prospective study on the incidence of post-needle biopsy pneumothorax looking  at the relationship between early lung function testing  manoeuvre, after full radiological expansion of lung and recurrence of pneumothorax. UP-FRONT FDG CT-PET study - Prospective study to look at whether performing Up-Front FDG CT-PET in the pre-treatment evaluation of lung cancer reduces time interval and the number of invasive procedures for definitive diagnosis.

Since July 2008, assistant in the Department of Epidemiology, MU- Plovdiv

From April 2020 epidemiologist at the Hygiene and Epidemiology Department, University Hospital "St. George" EAD

From September 2022 Acting Head of the Hygiene and Epidemiological Department, University Hospital "St. George" EAD

On 27.12.2020 applied the first vaccine in the history of the vaccination campaign against COVID-19 in Plovdiv

In 2021, she was part of the Ministry of Education and Culture of the Republic of Bulgaria campaign to educate teachers about vaccines against COVID-19.

In 2021-2022 advises on vaccines againstCOVID-19 on the National Patient Helpline toll-free Organization.

2021-2022 cooperates with the foundation "For our children"

2021-2023 participated in expert meetings on epidemiology at the Ministry of Health of the Republic of Bulgaria.

In 2022,  she was part of a working group at the Council of Ministers- Republic of Bulgaria.

Member of:

International epidemiological association (IEA) Bacti Vac Network. Bulgarian Scientific Society for Epidemiology of Infectious and Non-Infectious Diseases Bulgarian Association of Preventive Medicine. The South Bulgarian Society of Infectious Diseases, Epidemiology and Parasitology. Bulgarian Association for Prevention and Infection Control.

Research Interests:

Vaccines, vaccinology, infectious diseases, emerging diseases, epidemics, pandemics, COVID-19, varicella, shingles, measles.

List of Publications:

1. Tomov L, Chervenkov L, Miteva DG, Batselova H, Velikova T. Applications of time series analysis in epidemiology: Literature review and our experience during COVID-19 pandemic. World J Clin Cases. 2023 Oct 16;11(29):6974-6983. doi: 10.12998/wjcc.v11.i29.6974. PMID: 37946767; PMCID: PMC10631421.
   
2. Mileva N, Vasilev GH, Ganev B, Chervenkov L, Batselova H, Tzotcheva I, Tomov L, Velikova T, Lazova S. Cardiovascular Manifestations of Multisystem Inflammatory Syndrome in Children: A Single-Center Bulgarian Study. Medicina (Kaunas). 2023 Dec 14;59(12):2175. doi: 10.3390/medicina59122175. PMID: 38138278; PMCID: PMC10744581.
3. Dimitrov, G., Valkov, T., Batselova, H., Kounchev, O., Momekov, G., Argirova, R. Nationwide analysis of the impact of COVID-19 in patients with a cardiovascular, oncological or chronic pulmonary disease in the context of an Eastern European country with a low vaccination rate, Bulgaria: March 2020-April 2022 (2023) BMJ Open, 13 (8), art. no. e068431,
4. Miteva, D., Kitanova, M., Batselova, H., Lazova, S., Chervenkov, L., Peshevska-Sekulovska, M., Sekulovski, M., Gulinac, M., Vasilev, G.V., Tomov, L., Velikova, T. The End or a New Era of Development of SARS-CoV-2 Virus: Genetic Variants Responsible for Severe COVID-19 and Clinical Efficacy of the Most Commonly Used Vaccines in Clinical Practice (2023) Vaccines, 11 (7), art. no. 1181.
5. Ivanov N, Krastev B, Miteva DG, Batselova H, Alexandrova R, Velikova T. Effectiveness and safety of COVID-19 vaccines in patients with oncological diseases: State-of-the-art. World J Clin Oncol. 2023 Sep 24;14(9):343-356
6. Tomov, L., Batselova, H., Lazova, S., Ganev, B., Tzocheva, I., Velikova, T. Role of children in the Bulgarian COVID-19 epidemic: A mathematical model study (2023) World Journal of Experimental Medicine, 13 (3), pp. 28-46.
7.  Sekulovski, M. Mileva, N. Vasilev, G.V. Miteva, D. Gulinac, M. Peshevska-Sekulovska, M. Chervenkov, L. Batselova, H. Vasilev, G.H.; Tomov, L.; et al. Blood Coagulation and Thrombotic Disorders following SARS-CoV-2 Infection and COVID-19 Vaccination. Biomedicines 2023, 11, 2813.
8. Slabakova, Y.; Gerasoudis, S.; Miteva, D.; Peshevska-Sekulovska, M.; Batselova, H.; Snegarova, V.; Vasilev, G.V.; Vasilev, G.H.; Sekulovski, M.; Lazova, S.; et al. SARS-CoV-2 Variant-Specific Gastrointestinal Symptoms of COVID-19: 2023 Update. Gastroenterol. Insights 2023, 14, 431-445. https://doi.org/10.3390/gastroent14040032 .
9. Tomov, L.P., Batselova, H., Velikova, T.Changes in Patterns of Infectivity and Mortality with SARS-CoV-2 Omicron Variant in Bulgaria.Computer Science and Education in Computer Science. CSECS 2023. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 514. Springer, Cham. https://doi.org/10.1007/978-3-031-44668-9_15.
10. Tomov, L.P., Batselova, H.M., Velikova, T.V. COVID-19 Delta Wave Caused Early Overburden of Hospital Capacity in the Bulgarian Healthcare System in 2021 (2022) Healthcare (Switzerland), 10 (4), art. no. 600.
11. Tomov, L., Batselova, H., Velikova, T.V. Estimating COVID Case Fatality Rate in Bulgaria for 2020–2021(2022) Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST, 450 LNICST, pp. 102-115.
12. Snegarova V, Miteva D, Gulinac M, Peshevska-Sekulovska M, Batselova H, Velikova T. COVID-19 inpatients with gastrointestinal stromal tumors: Recommendations for management and vaccination. World J Gastrointest Pathophysiol 2022; 13(5): 170-177
13. Vasilev G, Kabakchieva P, Miteva D, Batselova H, Velikova T. Effectiveness and safety of COVID-19vaccines in patients with diabetes as a factor for vaccine hesitancy. World J Diabetes 2022; 13(9): 738-751.
14. Miteva D, Peshevska-Sekulovska M, Snegarova V, Batselova H, Alexandrova R, Velikova T. Mucosal COVID-19 vaccines: Risks, benefits and control of the pandemic. World J Virol 2022; 11(5): 221-236.
15. Tomov L, Miteva D, Sekulovski M, Batselova H, Velikova T. Pandemic control-do's and don'ts from a control theory perspective. World Journal of Methodology 12.5 (2022): 392.
16. Velikova, T., Kukov, A., Mihova, A., Snegarova, V., Batselova, H., Nakov, R. Gastrointestinal mucosal immunity and covid-19 (2021) World Journal of Gastroenterology, 27 (30), pp. 5047-5059.
17. Tomov, L., Velikova, T., Batselova, H. HEALTH RISK MANAGEMENT IN KINDERGARTENS AND SCHOOLS DURING COVID-19 PANDEMIC (2021) General Medicine, 23 (6), pp. 22-27.
    
18. Velikova, T., Batselova, H., Jenkov, V. IMPACT OF COVID‐19 PANDEMIC ON MENTAL HEALTH: A CROSS‐SECTIONAL SURVEY OF 1,020 BULGARIAN CITIZENS. Bulgarian Journal of Psychiatry (2020), 5 (3) , 10-18.
19. Velikova TV, Kotsev SV, Georgiev DS, Batselova HM. Immunological aspects of COVID-19: What do we know? World J Biol Chem. 2020 Sep 27;11(2):14-29.
20. Бацелова Х., Кеворкян А., Райчева Р., Бойкинова О., Балтаджиев И., Шопова Й., Стоилова Й. Епидемиологично проучване на хоспитализираните пациенти с варицела в Пловдивска област за периода 2000-2011г. Обща медицина, 2013, XV (3).
21. Baltadzhiev, I., Stoilova, J., Popivanova, N., Bazelova, H. Changes in the Viral Hepatitis B (VHB) morbidity 1987-2006 (2009) Problems of Infectious and Parasitic Diseases, 37 (1), pp. 39-40. 

Research Interest: Molecular biology of viruses, the interactions of viruses with host cells, the pathogenesis of viral diseases, the post-translational modification of viral proteins, and mechanisms of host defense. The research works are designed to increase fundamental knowledge as well as to facilitate the development of new approaches to control of viral infection.

Research Interest: Inflammatory bowel diseases coeliac disease, Cystic fibrosis.

Research Interest: Oncology, Immunology and Hematopoiesis.

Research Interest: The structure of sulfated polysaccharides extracts from seaweeds. The activity of sulfated polysaccharides such as nephrophaty and Parkinsion Disease. The comprehensive utilization of seaweeds especially Saccharina japonica.

Research Interest: Allergy test in clinical diagnosis, Immunotherapy and in vitro cell assay, Anti-inflammatory properties of natural compounds, Allergy and vaccination, Basophil activation tests.

Research Interest: Gene therapy, Cell and tissue engineering, Vaccine development, Biomaterials, Synthetic biology and biomass, Nanobiotechnology.

Research Interest: Protein Engineering, Adjuvant and Vaccine Delivery Systems, Vaccinology, cGMP Quality Management, Immunology.

Research Interest: HTA and to new communication strategies with people about vaccination, especially in consideration of the rising phenomena of anti-vaccination movements.

Research Interest: Genitourinary Cancer

Research Interest: Currently, his studies focus on the two major directions. The first one is to study the innate receptor TLR and NLR ligands as adjuvant for CTL epitope-based vaccines to treat cancer and the adjuvant effect on the modulation of immune responses will be studied.

Research Interest: He focused on developing novel adjuvants and vaccine delivery systems for prophylactic vaccination along with rational design of new vaccine formulations for Novartis discovery projects.

Research Interest: Basic Biology/Physiology Of Salivary Glands, Prevention Of Radiation-Induced Salivary Gland Damage, Gene Transfer To Salivary Glands, Viral Vector Modification And Improving Viral Vectors For Gene Transfer.