Needs of Patients with rare disorders of protein metabolism must not be neglected! Currently, the main focus of all health systems is the global fight against Covid-19. However, the treatment requirements of patients with rare disorders of protein metabolism must not be neglected. Phenylketonuria (PKU) and other rare disorders of protein metabolism require early diagnoses and immediate treatment. If left untreated, PKU causes severe mental and physical retardation. Effects on other diseases, such as Tyrosinemia or Maple Syrup Urea Disease (MSUD), can be potentially fatal. Neonatal screening must continue for every baby born. This is essential for timely diagnoses and …