NEW DELHI : Covid-19 may be seasonal like flu, a global analysis of the pandemic by the University of Illinois, Chicago, has suggested.In a paper, published in Evolutionary Bioinformatics, Illinois researchers have suggested that covid-19 cases and mortality rates, among other epidemiological metrics, are significantly correlated with temperature and latitude across 221 countries.Also Read | Battered infra dream awaits a new dealEarly in the pandemic, researchers and public health officials had suggested SARS-CoV-2 may behave like other coronaviruses, many of which rear their heads in fall and winter.