TCTulika Chatterjee

Tulika Chatterjee

*This is an algorithmically generated author record based on publicly available information.

Current Organizations / Institutes

The organizations/institutes from the scholar's latest article


Tulika Chatterjee has a total of 210 co-authors. Here are the top co-authors by number of shared publications:


Latest Publications

  • Discordance in Patient and Physician's Perception of Disease Activity Among Idiopathic Inflammatory Myopathy Patients: Insights From the COVAD Study

    by Rudra P. Goswami, Parikshit Sen, Zoha Zahid Fazal, Jasmine Parihar, Yogesh Preet Singh, R. Naveen, James B. Lilleker, Mrudula Joshi, Vishwesh Agarwal, Arvind Nune, et al.


  • Open Access

    Aspergillus calidoustus : An Emerging Cause of Invasive Aspergillosis and the Role of Metagenomic Next‐Generation Sequencing Test in Its Diagnosis

    by Tulika Chatterjee, Moni Roy, Mohammad O. Almoujahed, Sharjeel Ahmad

    Transplant recipients have a high risk of infection with opportunistic pathogens. The type, dose, and duration of immunosuppression and use of prior broad‐spectrum antimicrobials contribute to overall risk of infections. Aspergillosis is a known opportunistic infection that can occur as mid or late infection after visceral transplant. Aspergillus fumigatus is the commonly isolated species, but with the use of prophylactic broad‐spectrum antifungals, other species such as Aspergillus calidoustus are emerging. We report a case of invasive sinusitis and brain mass due to this species of Aspergillus that was identified using next‐generation sequencing (NGS). Use of NGS early in clinical presentation may help in effective management of opportunistic infections in immunocompromised hosts.


  • Open Access

    The impact of multimorbidity on Quality of Life in inflammatory myopathies: A cluster analysis from the COVAD dataset

    by Marco Fornaro, Vincenzo Venerito, Maria Rosa Pellico, Florenzo Iannone, Mrudula Joshi, Yi-Ming Chen, Ai Lyn Tan, Sreoshy Saha, Tulika Chatterjee, Vishwesh Agarwal, et al.

    The presence of comorbidities can substantially affect patients’ quality of life, but data regarding their impact on idiopathic inflammatory myopathies (IIMs) are limited. We examined the prevalence of comorbidities in IIM patients, other autoimmune rheumatic diseases (oAIRDs), and healthy controls (HCs), using data from the self-reported COVAD-2 survey. We defined Basic Multimorbidity (BM) as the presence of ≥ 2 non-rheumatic chronic conditions and Complex Multimorbidity (CM) as the presence of ≥ 3 non-rheumatic chronic conditions affecting ≥3 organ systems. Hierarchical Clustering on Principal Components was performed for grouping. Among the COVAD respondents, 1558 IIMs, 4591 oAIRDs, and 3652 HCs were analysed. IIMs exhibited a high burden of comorbidities (OR: 1.62 vs oAIRDs and 2.95 vs HCs, p< 0.01), BM (OR 1.66 vs oAIRDs and 3.52 vs HCs, p< 0.01), CM (OR: 1.69 vs AIRDs and 6.23 vs HCs, p< 0.01), and mental health disorders (MHDs) (OR 1.33 vs oAIRDs and 2.63 vs HCs, p< 0.01). Among the IIM patients, those with comorbidities or MHDs had lower PROMIS Global Physical (PGP), PROMIS Global Mental (PGM), and PROMIS Physical Function (SF10) scores, and higher fatigue (F4a) scores (all p< 0.001). PGP, PGM, SF10a and F4a were influenced by age, active disease, BM, and MHDs. Four distinct clusters were identified among the IIMs according to comorbidities and PROMIS scores. Patients with IIMs have a higher burden of comorbidities that influence physical and mental health, identifiable as clinical clusters for optimized and holistic management approaches.


  • Open Access

    Collating the voice of people with autoimmune diseases: Methodology for the Third Phase of the COVAD Studies

    by Esha Kadam, Mahnoor Javaid, Parikshit Sen, Sreoshy Saha, Nelly Ziade, Jessica Day, Chris Wincup, Laura Andreoli, Ioannis Parodis, Ai Lyn Tan, et al.

    Introduction: The growing recognition of holistic patient care highlights the various factors shaping the quality of life of individuals with autoimmune and rheumatic diseases (AIRDs). Beyond the traditional disease measures, there is an emerging acknowledgment of the less-explored aspects, including subjective well-being, social determinants of health, comorbidities, mental health, and medication adherence. Moreover, digital health services have empowered patients to engage actively in decision-making alongside clinicians. To explore these domains within the context of AIRDs, the “Collating the Voice of People with Autoimmune Diseases” COVAD survey was conceived, a successor of the previous two COVAD surveys. In this document, we present the study protocol in comprehensive detail. Methods: The COVAD-3 survey is a cross-sectional patient self-reported e-survey incorporating multiple widely accepted scales/scores to assess various aspects of patients’ lifestyles objectively. To ensure the survey's accuracy and usability across diverse regions, it will be translated into multiple languages and subjected to rigorous vetting and pilot testing. It will be distributed by collaborators via online platforms and data will be collected from patients with AIRDs, and healthy individuals over eight months. Data analysis will focus on outcome measures related to various social, demographic, economic, and psychological factors. Conclusion: With the increasing awareness to adopt a holistic treatment approach encompassing all avenues of life, the COVAD-3 survey aims to gain valuable insights into the impact of social, demographic, economic, and psychological determinants of health on the subjective well-being in patients with AIRDs, which will contribute to a better understanding of their overall health and well-being.


  • Top Cited Papers
    Open Access

    The social media Infodemic of health-related misinformation and technical solutions

    by Flinta Rodrigues, Richard Newell, Giridhara Rathnaiah Babu, Tulika Chatterjee, Nimrat Kaur Sandhu, Latika Gupta


  • Open Access

    COVID-19 breakthrough infections in type 1 diabetes mellitus: a cross-sectional study by the COVID-19 Vaccination in Autoimmune Diseases (COVAD) Group

    by Suhrud Panchawagh, Naveen Ravichandran, Bhupen Barman, Arvind Nune, Mahnoor Javaid, Abraham Edgar Gracia-Ramos, Jessica Day, Mrudula Joshi, Masataka Kuwana, Sreoshy Saha, et al.

    To investigate the frequency, profile, and severity of COVID-19 breakthrough infections (BI) in patients with type I diabetes mellitus (T1DM) compared to healthy controls (HC) after vaccination. The second COVID-19 Vaccination in Autoimmune Diseases (COVAD-2) survey is a multinational cross-sectional electronic survey which has collected data on patients suffering from various autoimmune diseases including T1DM. We performed a subgroup analysis on this cohort to investigate COVID-19 BI characteristics in patients with T1DM. Logistic regression with propensity score matching analysis was performed. A total of 9595 individuals were included in the analysis, with 100 patients having T1DM. Among the fully vaccinated cohort, 16 (16%) T1DM patients had one BI and 2 (2%) had two BIs. No morbidities or deaths were reported, except for one patient who required hospitalization with oxygen without admission to intensive care. The frequency, clinical features, and severity of BIs were not significantly different between T1DM patients and HCs after adjustment for confounding factors. Our study did not show any statistically significant differences in the frequency, symptoms, duration, or critical care requirements between T1DM and HCs after COVID-19 vaccination. Further research is needed to identify factors associated with inadequate vaccine response in patients with BIs, especially in patients with autoimmune diseases.


  • Flares of autoimmune rheumatic disease following COVID‐19 infection: Observations from the COVAD study

    by Nimrat Kaur Sandhu, Naveen Ravichandraan, Arvind Nune, Jessica Day, Parikshit Sen, Elena Nikiphorou, Ai Lyn Tan, Mrudula Joshi, Sreoshy Saha, Samuel Katsuyuki Shinjo, et al.


  • Open Access

    An Unusual Case of Dual Pancreatic Tumors

    by Tulika Chatterjee, Yeshaswini Reddy, Maaz Badshah, Srinivas Puli

    We report a simultaneous occurrence of pancreatic adenocarcinoma and pancreatic neuroendocrine tumor. A 64-year-old woman presented with abdominal pain and weight loss. Abdominal computed tomography revealed a pancreatic head mass with a mesenteric artery encasement. Endoscopic ultrasound revealed a second mass in the tail of the pancreas. Pathology reported adenocarcinoma of the head of the pancreas and a neuroendocrine tumor in the tail of the pancreas. The neuroendocrine tumor was nonfunctional, with no symptoms or signs present on assessment. The patient had advanced unresectable carcinoma, so she was treated with chemotherapy.


  • Delayed adverse events following COVID-19 vaccination in patients with systemic sclerosis and other autoimmune diseases: a substudy of the COVAD-2 cohort

    by Suhrud Panchawagh, Doskaliuk Bohdana, Masataka Kuwana, Akira Yoshida, Keina Yomono, John D. Pauling, Ashima Makol, Esha Kadam, Jessica Day, Tulika Chatterjee, et al.

    Data on short-term safety of COVID-19 vaccination in patients with systemic sclerosis (SSc) were explored previously in the first COVID-19 vaccination in autoimmune diseases (COVAD) survey conducted in 2021. However, delayed adverse events (ADEs) (occurring > 7 days post-vaccination) are poorly characterized in these patients with SSc. In this study, we analysed delayed COVID-19 vaccine-related ADEs among patients with SSc, other systemic autoimmune and inflammatory disorders (SAIDs) and healthy controls (HCs) using data from the second COVAD study conducted in 2022. The COVAD-2 study was a cross-sectional, patient self-reported global e-survey conducted from February to June 2022. Data on demographics, SSc/SAID disease characteristics, COVID-19 infection history, and vaccination details including delayed ADEs as defined by the Centre for Disease Control were captured and analysed. Among 17,612 respondents, 10,041 participants fully vaccinated against COVID-19 were included for analysis. Of these, 2.6% (n = 258) had SSc, 63.7% other SAIDs, and 33.7% were HCs. BNT162b2 Pfizer (69.4%) was the most administered vaccine, followed by MRNA-1273 Moderna (32.25%) and ChadOx1 nCOV-19 Oxford/AstraZeneca (12.4%) vaccines. Among patients with SSc, 18.9% reported minor, while 8.5% experienced major delayed ADEs, and 4.6% reported hospitalization. These frequencies were comparable to those of the ADEs reported by other patients with SAIDs and HCs. However, patients with SSc reported a higher frequency of difficulty in breathing than HCs [OR 2.3 (1.0–5.1), p = 0.042]. Patients with diffuse cutaneous SSc experienced minor ADEs [OR 2.1 (1.1–4.4), p = 0.036] and specifically fatigue more frequently [OR 3.9 (1.3–11.7), p = 0.015] than those with limited cutaneous SSc. Systemic sclerosis patients with concomitant myositis reported myalgia more frequently [OR 3.4 (1.1–10.7), p = 0.035], while those with thyroid disorders were more prone to report a higher frequency of joint pain [OR 5.5 (1.5–20.2), p = 0.009] and dizziness [OR 5.9 (1.3–27.6), p = 0.024] than patients with SSc alone. A diagnosis of SSc did not confer a higher risk of delayed post-COVID-19 vaccine-related ADEs overall compared with other SAIDs and HCs. However, the diffuse cutaneous phenotype and coexisting autoimmune conditions including myositis and thyroid disease may increase the risk of minor ADEs. These patients may benefit from pre-vaccination counselling, close monitoring, and early initiation of appropriate care in the post-COVID-19 vaccination period.


  • Open Access

    Type 1 diabetes, COVID‐19 vaccines and short‐term safety: Subgroup analysis from the global COVAD study

    by Tulika Chatterjee, Naveen Ravichandran, Narmadha Nair, Abraham Edgar Gracia‐Ramos, Bhupen Barman, Parikshit Sen, Mrudula Joshi, Sreoshy Saha, Arvind Nune, Arun Kumar R Pande, et al.

    Aims/Introduction: Coronavirus disease 2019 (COVID-19) vaccinations have been proven to be generally safe in healthy populations. However, the data on vaccine safety in patients with type 1 diabetes are scarce. This study aimed to evaluate the frequency and severity of short-term (<7-day) adverse vaccination events (AEs) and their risk factors among type 1 diabetes patients. Materials and Methods: This study analyzed data from the COVID-19 vaccination in Autoimmune Diseases (COVAD) survey database (May to December 2021; 110 collaborators, 94 countries), comparing <7-day COVID-19 vaccine AE among type 1 diabetes patients and healthy controls (HCs). Descriptive statistics; propensity score matching (1:4) using the variables age, sex and ethnicity; and multivariate analyses were carried out. Results: This study analyzed 5,480 completed survey responses. Of all responses, 5,408 were HCs, 72 were type 1 diabetes patients (43 females, 48.0% white European ancestry) and Pfizer was the most administered vaccine (39%). A total of 4,052 (73.9%) respondents had received two vaccine doses. Patients with type 1 diabetes had a comparable risk of injection site pain, minor and major vaccine AEs, as well as associated hospitalizations to HCs. However, type 1 diabetes patients had a higher risk of severe rashes (3% vs 0.4%, OR 8.0, 95% confidence interval 1.7-36), P = 0.007), although reassuringly, these were rare (n = 2 among type 1 diabetes patients). Conclusions: COVID-19 vaccination was safe and well tolerated in patients with type 1 diabetes with similar AE profiles compared with HCs, although severe rashes were more common in type 1 diabetes patients.