Sponsor decision

No additional risk factors have been identified in patients with Inherited Metabolic Diseases (IMD) for contracting or presenting complications of COVID-19 compared to the general population. Yet, IMD patients have cell/tissue alterations that could constitute a potential direct or indirect target for the virus. We do not know the impact of this infection on patients suffering from MHM, nor the possible effect of specific treatment of MHM on the evolution of COVID-19.

This study will collect French IMD patients having or having had COVID-19 infection. The main objective is to estimate among IMD patients contracting COVID-19 the frequency of disease aggravation or metabolic decompensation.

The secondary objectives will be : a. to evaluate the incidence of COVID-19 diagnosed in a given group of IMD when the number of patients with this IMD is known (Urea Cycle Deficiency, Gaucher Disease). b. to evaluate the impact of IMD on the and severity of COVID-19 infection

Inclusion Criteria:

• Child or adult patient with a diagnosis of IMD
• Symptomatic or asymptomatic patient tested positive for COVID-19 (PCR and/or serology)
• Symptomatic patient non tested but with strong clinical suspicion for COVID-19
• Patient affiliated with the health insurance

Exclusion Criteria:

• inability to receive informed information
• Persons deprived of liberty

IMD patients followed in reference centers for IMD in France. children and adult patients with MHM who have been infected with COVID-19 (tested positive or considered positive for COVID-19). Asymptomatic MHM patients tested positive for COVID 19 (contact case, for example) will also be studied.