Recent studies and analyses present contrasting perspectives on the impact of mRNA COVID-19 vaccines. A six-month longitudinal study published in Frontiers examined immune and hematological responses following a third dose of an mRNA COVID-19 vaccine. Another study reported that mRNA boosters can induce immune suppression, systemic inflammation, and coagulation abnormalities within 48 hours in healthy young adults, including a decrease in lymphocyte counts. Some voices have criticized the rapid deployment of mRNA vaccines, suggesting inadequate testing and raising concerns about vaccine-related injuries and side effects. Additionally, there are claims alleging that the SARS-CoV-2 virus and mRNA vaccines were used as biological weapons, though these assertions lack accountability. In contrast, an analysis cited by IFLScience estimates that COVID-19 vaccinations saved approximately 2.5 million lives globally between 2020 and 2024. Separate research also highlights prolonged COVID-19 infection cases in patients with compromised immune systems, such as those with B-cell acute lymphoblastic leukemia, treated with convalescent plasma and monoclonal antibodies.