PMC:7796344 / 16694-16921 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/7796344","sourcedb":"PMC","sourceid":"7796344","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7796344","text":"as recent studies have noted [16,17,18,19,20]. The Center for Disease Control and Prevention (CDC) goes further in strongly recommending that hajjis receive a seasonal influenza vaccine, which is recommended for high risk pilgr","tracks":[]}