A population-level study found no increase in neonatal and infant mortality rates during the initial COVID-19 pandemic period. However, social distancing measures were linked to higher preterm birth rates with a lag period.
A new study analyzed over 5,700 invasive plant species and found nearly one-third exhibited lag periods between introduction and rapid expansion, with the average time being 40 years. This latency allows them to be overlooked, contributing to their eventual emergence as a serious ecological threat.
Bacteria can multiply rapidly, but a lag phase precedes exponential growth. Researchers have developed a system to study this period, revealing genes and nutrient uptake mechanisms that help bacteria thrive in new environments.