id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
iajs-3638	Raad Saadi, Rami; F. Al-Husseiny , Hassan	Influence of Infection Delay on the Covid-19 Pandemic with Vaccination Control: Modeling and Simulation	2025	20	.pdf	application/pdf	6904	399	78	𝛽1𝑆(𝑡 − 𝜏)𝐼(𝑡 − 𝜏) − 𝜆)(−𝜇 − 𝜆)(−(𝛾 + 𝜇) − 𝜆)(−𝜇 − 𝜆) = 0 (6a) Equation (6a) represents the eigenvalues of 𝐽(𝐸0) and has 4-roots: 𝜆1 = 𝛽1𝑆̅𝑒 −𝜆𝜏 − (𝜇 + 𝜇1 + 𝜃) 𝜆2	cache/iajs-3638.pdf	txt/iajs-3638.txt