Toxoplasmosis and Symptoms Severity in Patients With Covid-19 in Referral Centers in Northern Iran Publisher

Summary: No significant link between toxoplasmosis & COVID-19 symptom severity or mortality in Iranian patients. #Toxoplasmosis #COVID19

Geraili A¹ ; Badirzadeh A¹ ; Sadeghi M¹ ; Mousavi SM² ; Mousavi P³ ; Shahmoradi Z^{3, 4} ; Hosseini SM⁵ ; Hejazi SH^{2, 3} ; Rafieisefiddashti R¹
Source: Journal of Parasitic Diseases Published:2023

Abstract

Toxoplasmosis has been categorized as one of the long-lasting protozoan parasitic infections. It affects almost one-third of the world’s population. In recent years, several documented studies have elucidated that infected individuals have a remarkably higher incidence of distinct health problems and show various adverse effects. In the PCR-positive COVID-19 patients in Gonbad-e-Kavus, Kalaleh, and Minoodasht counties in the northern part of Iran from June 2021 to December 2021, we sought to investigate any potential relationships between the severity of COVID-19 symptoms and acute and latent toxoplasmosis caused by Toxoplasma gondii (T. gondii). Whole blood samples of 161 COVID-19 patients with positive PCR. The samples were centrifuged to separate serum and screened for two important antibodies against T. gondii (IgM and IgG) by using ELISA kits for human anti-T. gondii IgM and IgG. Anti-T. gondii IgM and IgG antibodies were detected in 8/161 (5.0%) and 42/161 (26.1%) COVID-19 patients, respectively. No significant relationships were found between Toxoplasma IgM and IgG results with clinical signs, age, sex, contact with animals, comorbidities, and also the mortality rate of people with COVID-19. These findings showed that acute and latent toxoplasmosis infections are common among patients with COVID-19; however, no significant associations were found between toxoplasma infections and the symptoms of COVID-19. Therefore, toxoplasmosis is not considered a risk factor for COVID-19. © 2022, Indian Society for Parasitology.