Funding for this research was provided by:
the Israeli Association of Family Physicians (0)
Received: 25 December 2019
Accepted: 19 March 2020
First Online: 26 March 2020
Ethics approval and consent to participate
: The study was approved by Maccabi Healthcare services institutional review board. Informed consent was signed by the patient or his guardian (for children) prior to sample collection.
: Not applicable.
: The authors declare that they have no competing interests.