New Delhi, Jun 2 (PTI) A study has identified at least two distinct subtypes of autism, one with an increased communication associated with immune-related systems and another with a reduced connectivity linked to synaptic pathways that help brain cells send signals to one another. Findings published in the journal Nature Neuroscience pave way in developing tools for a precise, personalised autism care and support, researchers said. Autism is a neurodevelopmental disorder in which one displays re