Add spaces: EuropeanCentreforDiseasePreventionandControl(ECDC)–workstostrengthenEurope'sdefencesagainstinfectiousdiseases.

Answer: European Centre for Disease Prevention and Control (ECDC) – works to strengthen Europe's defences against infectious diseases.

Add spaces: Averylargenumberofscientificpaperswereabletodemonstratesomeofthewaysthroughwhichitexercisespowersofhealing,researchersdiscoveredmorethan100ofthewaysinwhichitactsinthecell.

Answer: A very large number of scientific papers were able to demonstrate some of the ways through which it exercises powers of healing, researchers discovered more than 100 of the ways in which it acts in the cell.

Add spaces: 1Thedifferencesbetweenthelanguagesoftheusersanddevelopersshouldnotbeunderestimated.

Answer:
1 The differences between the languages of the users and developers should not be underestimated.