From the 5th of November 2019 to the 8th, India saw one of its extravagant science events, the India International Science Festival, organised in Kolkata. The event was organised by the Ministry of Science & Technology and Earth Sciences, Government of India, in association with Vijnana Bharati (VIBHA) and hosted many conferences, conclaves and exhibitions aimed at anyone enthusiastic about science. Although this was the fifth edition of the science festival, it was the first time a dedicated Science and Technology Media Conclave was held as a part of IISF—a move that had many science communicators, writers and journalists enthused. It was spread over two days, the 6th and 7th of November, at the legendary Bose Institute.

A recent assessment by the World Meteorological Organisation has declared heat waves as the deadliest extreme weather event in the years 2015–2019, causing more than 8,900 deaths globally. In May 2015, temperatures crossed 45°C in Odisha and Telangana in the fifth deadliest heat wave in history, with a death toll of 2,300. With 30% of the global population living in regions susceptible to 20 heat wave days in a year and the rising global temperatures, one can conclude that its toll will only increase in the years to come. In such situations, warnings about impending heat waves can be lifesavers. However, very few studies have focused on such a prediction system to date, with none looking at real-time predictions. Now, researchers have developed a prediction system to predict heat waves a couple of weeks in advance. The study, funded by the Ministry of Earth Sciences, Govt. of India, was published in the journal Scientific Reports.

Sometime in the middle of October each year, the Bomrr clan in Nagaland rush to the caves in Mimi village. With a good stock of burning firewood, men and women are ready for the bat harvest festival—an annual ritual where anywhere between 7,000 to 25,000 bats are suffocated or smashed to their deaths. These bats, the clan believes, have medicinal properties and can cure diseases like diarrhoea and body ache, and increase vigour. Now, a new study has shown that these bats, rather than being a cure to diseases, carry deadly filoviruses that could infect humans.

The use of vaccination for preventing diseases has had the most profound effect on human health and quality of life. Despite this, anti-vaccination movements are gaining popularity in recent years, especially in high income countries with historically near universal vaccine coverage, like the USA. Consequently, cases of diseases like measles have seen a 30% rise globally. Vaccine hesitancy has been declared one of the top ten threats to global health by the WHO in 2019. In times like these, what if science showed some added benefits of vaccination besides the obvious? A recent set of studies by a team of international researchers, led by those at the Center for Disease Dynamics, Economics & Policy (CDDEP), Washington DC and New Delhi, have shown that vaccines can have other unintentional positive effects.