What are the differential diagnoses to be considered, and what are another steps needed to establish the diagnosis? Case scenario Jack, a 4-year-old boy, has recently been experiencing a few headaches and was brought in for a consultation by his mother. He was an active and alert child who was in no distress and, on examination, had no apparent neurological abnormality apart from a mild and adjustable left strabismus . From the age of 2 years, nevertheless, he has experienced unusual drop attacks. She stated that when Jack was excited and running around, he would stop rigid and then fall backwards suddenly.Moore, cEO and chairman of Advaxis, Inc., , the live, attenuated Listeria monocytogenes vaccine business, has issued the following statement to shareholders concerning the recent transition to the OTCQB from the OTCBB: Dear Fellow Shareholders, Related StoriesNew vaccine applicant shows great promise at fighting respiratory syncytial virusResearchers reveal why malaria vaccine provides just moderate protection among vaccinated childrenResearch provides leads for new ways of develop HIV vaccineOver the last few days, achieving the Company’s stock quotation information has been incredibly difficult. That is largely related to a move by our collective Marketplace Makers to estimate and trade the business’s shares on the OTC Marketplaces platform instead of the OTCBB platform for economic factors of their own.