The best upgrade for your body is taking care and checking your body regularly. At the moment, I very seriously began to work on strengthening my body and immune system. On the site https://immunedefence.info/studies, I read very interesting information and constructive research on the topic of immune support and what drugs are best used for this. For example, an Australian study has shown that compounds from elderberries can directly interfere with the entry and replication of the virus in human cells and may help strengthen a person’s immune response to the virus.