Jharkhand on Saturday launched five mobile RT-PCR testing laboratories to intensify Covid-19 testing across five highly populated and Covid-affected districts as a part of its “five-pronged strategy for containment of Covid-19”, which aims at testing, tracking, isolating, treating and vaccinating residents. With the launch of these mobile vans, Jharkhand became the fourth Indian state to use mobile RT-PCR testing laboratories. So far, such labs were being used in Maharashtra, New Delhi and Karnataka, health officials said. Advertisement On the basis of the current positivity rate of infection and population density, the state has launched the mobile RT-PCR lab facility in Ranchi, East Singhbhum, Dhanbad, Palamu and Hazaribag.