The free virtual event, which is open to the public, will take place from 3pm to 6.30pm GMT on Thursday 15 April. The WTTC and Carnival held a similar event in July last year.
It will bring together global scientists and health experts to discuss best practices for living with Covid-19, building on a much wider understanding of the virus’s effect on society.
The WTTC said the event would be particularly relevant to the travel sector, as it would provide an up-to-the-minute outlook on research that can, and will, inform "practical, adaptable and science-based solutions" to mitigate Covid-19.
Panels will cover epidemiology, screening, testing and tracing, Covid treatment, vaccination, prevention, mitigation and more.
Gloria Guevara, WTTC president and chief executive, said the event would offer "valuable insight on how best to apply the latest science and medical evidence to address the many practical questions people have about living in a world with Covid-19".
"As leaders and global citizens alike, we seek the best and latest information from experts on how we can best move forward and turn the corner on this crisis," Guevara added.
Arnold Donald, president and chief executive of Carnival Corp, said: "We are grateful to the highly regarded experts who have agreed to participate in our 2021 Global Scientific Summit on Covid-19 – and to share with us what they’ve learned at the frontlines of the Covid-19 battle.
"Their insights will be incredibly helpful as businesses and governments alike seek to better understand Coid-19’s impact on society, and together we can determine safe and workable evidence-based practices for mitigating and living with the virus."
Donald is also a member of the WTTC’s executive committee, and the council’s North America vice-chair.