Deterministic and Fractional-Order Co-Infection Model of Omicron and Delta Variants of Asymptomatic SARS-CoV-2 Carriers

The Delta and Omicron variants’ system was used in this research study to replicate the complex process of SARS-CoV-2 outbreak. generalised fractional designed rigorously analysed order gain a comprehensive understanding transmission dynamics both variants. proposed dynamical has heredity memory effects, which greatly improved our ability perceive disease propagation dynamics. non-singular Atangana–Baleanu operator forecast current pandemic meet challenge. Picard recursions approach can be ensure that at least one solution occupying growth condition function regardless initial conditions. Hyers–Ulam–Rassias stability criteria were carry out analysis governing equations, fixed-point theory ensured uniqueness solution. Additionally, model exhibited global asymptotically stable behaviour some approximate fatal virus investigated using an efficient reliable numerical Adams–Bashforth approach. outcome demonstrated there will significant decline population those infected with variants if vaccination rate is increased (in symptomatic stages).