A vaccination model for COVID-19 in Gauteng, South Africa

The effect of changing COVID-19 restrictions on the transmission rate in a veterinary clinic

“…Here, asymptomatic individuals are individuals who remain asymptomatic throughout the disease process, while pre-symptomatic individuals are infected individuals who are not presently symptomatic but will later become symptomatic. We make this distinction because pre-symptomatic individuals transmit the infection at a rate similar to symptomatic individuals, and asymptomatic individuals transmit the infection at a much lower rate than pre-symptomatic and symptomatic individuals ( Centers for Disease Control and Prevention, 2021 ; Edholm et al, 2022 ).…”

“…Because of changes in behavior and/or government mandates regarding social distancing, some rates in other COVID-19 models have been chosen to be time-dependent ( Edholm et al, 2022 ; Eikenberry et al, 2020 ). Therefore, we investigated the impact of holding those parameters constant over time except for the transmission rates β vp .…”

“…Many different modeling techniques have been used, ranging from agent-based approaches to Bayesian modeling frameworks at the city level or county level ( Murtadha et al ; Olmo & Sanso-Navarro, 2021 ; Potgieter et al, 2021 ). Some ODE models have included compartments with individuals in the hospital, with some assuming those persons to be isolated or others assuming them to be transmitting disease but at a lower rate ( Edholm et al, 2022 ; Gumel et al, 2021 ; Ngonghala et al, 2020 ). Spatial scales in COVID-19 models have ranged from countries and counties to cities ( Aslan et al, 2022 ; Gao et al, 2020 ; Gatto et al, 2020 ; Gumel et al, 2021 ; Macdonald et al, 2020 ; Renardy et al, 2020 ; Zhao & Feng, 2020 ).…”

Optimal COVID-19 epidemic strategy with vaccination control and infection prevention measures in Thailand

“…In the most recent papers of 2022, several authors have focused on creating and analyzing mathematical models to explore the impact of COVID-19 ( Kifle and Obsu ; Ssebuliba et al, Mugisha ; Paul and Kuddus ; Algarni et al, 2022 ; Khana and Atangana ; Edholm et al, 2022 ; Aronna et al, 2022 ; Yong et al, 2022 ). For instance, Z.S.…”

“…M. A. Khan and A. Atangana ( Khana and Atangana ) studied mathematical models to explain the new variant of COVID-19 in South Africa. Christina J. Edholm et al ( Edholm et al, 2022 ) studied a vaccination model for COVID-19 in Gauteng, South Africa. Benny Yong et al ( Yong et al, 2022 ) constructed an SVEIQHR-type mathematical model for the spread of COVID-19 to optimize governmental interventions in Indonesia.…”