Effectiveness of the strategies implemented in Sri Lanka for controlling the COVID–19 outbreak

International Journal of Mathematics and Mathematical Sciences

2021

Self Cite

In order to recover the damage to the economy by the ongoing COVID-19 pandemic, many countries consider the transition from strict lockdowns to partial lockdowns through relaxation of preventive measures. In this work, we propose an optimal lockdown relaxation strategy, which is aimed at minimizing the damage to the economy, while confining the COVID-19 incidence to a level endurable by the available healthcare facilities in the country. In order to capture the transmission dynamics, we adopt the compartment models and develop the relevant optimization model, which turns out to be nonlinear. We generate approximate solutions to the problem, whereas our experimentation is based on the data on the COVID-19 outbreak in Sri Lanka.

Section: Lockdown Strategies In Sri Lankamentioning

confidence: 99%

An Optimal Lockdown Relaxation Strategy for Minimizing the Economic Effects of COVID-19 Outbreak

Mahasinghe

Erandi

International Journal of Mathematics and Mathematical Sciences

2021

Self Cite

“…Sri Lanka reported the first covid–19 case in a Chinese tourist on 27 th January 2020 and subsequently in a local person on 11 th March, 2020. Aimed at controlling the pandemic, the government of Sri Lanka implemented several strategies, of which reducing human mobility was the most prominent one [8]. A strict strategy of lockdown was enforced together with other preventive measures including case detection, identification of contacts, quarantine, travel restrictions and isolation of small villages as well.…”

Section: Lockdown Strategies In Sri Lankamentioning

confidence: 99%

An optimal lockdown relaxation strategy for minimizing the economic effects of covid–19 outbreak

Mahasinghe

Erandi

2020

Preprint

Self Cite

In order to recover the damage to the economy by the ongoing covid-19 pandemic, Sri Lanka is undergoing a gradual transition from strict lockdowns to partial lockdowns through relaxation of curfew and other moderated preventive measures. In this work, we propose an optimal lockdown relaxation strategy, which is aimed at minimizing the damage to the economy, while confining the covid-19 incidence to a level endurable by the available healthcare capacity in the country. The relevant optimization model turns out to be non-linear. We use the technique of separable programming to generate solutions and discuss the results.

“…A nationwide lockdown was implemented in Sri Lanka starting from 20th of March 2020. Even before that, when the country was in partial lockdown, schools and Universities had initiated online teaching and learning [13]. This made the youth of the country to remain at home spending more time using electronic devices and internet for their academic as well as entertainment purposes.…”

Section: Introductionmentioning

confidence: 99%

Cyber-bullying among Sri Lankan children: Socio-demographic profile, psychosocial behavior pattern and impact of COVID-19 pandemic

Vadysinghe

Wickramasinghe

et al. 2022

Preprint

Cyber-bullying is a global issue in the current era. The main objective of this study was to identify the prevalence and determinants of cyber-bully victimization and to analyze the impact of COVID-19 pandemic. A self-reported questionnaire collected data from students aged 14–17 years in Sri Lanka in September 2020. Prevalence of any form of bullying in the cohort of 970 subjects was 4.3%, with 3.5% being subjected to cyber-bullying. While females (57.1%) were more frequently victimized than males, the main perpetrators were males (61.9%). Victims experienced bullying mainly through embarrassing or abusive media circulated via social media and majority was cyber-bullied outside school hours. Although the majority was in the opinion that incidents of cyber-bullying should be reported to adults, most of them divulged only to their friends. Despite the increase in online activity during COVID-19 pandemic, only 10.7% believed that there is a rise in cyber-bullying during this period.