Rav Hamburger is well on his way to a full recovery, bEzras Hashem.  However, because of his state of health, he is currently not be able to keep up with his correspondence.  Any urgent questions may be sent, preferably in Hebrew, to This email address is being protected from spambots. You need JavaScript enabled to view it., where they will be handled by his son, Rav Moshe Hamburger.