Natural immunity to influenza A and B among Saudi blood donors in Al Madinah Al Munawarah, Saudi Arabia

From the Department of Medical Laboratory Technology (Mahallawi, Ibrahim, Alahmadi, Al-Harbi, Almughthawi), College of Applied Medical Sciences, Taibah University, from the General Directorate of Laboratories and Blood Banks (Alhazmi, Alsehli), Ministry of Health, Al Madinah Al Munawarah, Kingdom of Saudi Arabia and from the Department of Medical Laboratory Sciences (Khabour), Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan

From the Department of Medical Laboratory Technology (Mahallawi, Ibrahim, Alahmadi, Al-Harbi, Almughthawi), College of Applied Medical Sciences, Taibah University, from the General Directorate of Laboratories and Blood Banks (Alhazmi, Alsehli), Ministry of Health, Al Madinah Al Munawarah, Kingdom of Saudi Arabia and from the Department of Medical Laboratory Sciences (Khabour), Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan

From the Department of Medical Laboratory Technology (Mahallawi, Ibrahim, Alahmadi, Al-Harbi, Almughthawi), College of Applied Medical Sciences, Taibah University, from the General Directorate of Laboratories and Blood Banks (Alhazmi, Alsehli), Ministry of Health, Al Madinah Al Munawarah, Kingdom of Saudi Arabia and from the Department of Medical Laboratory Sciences (Khabour), Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan

From the Department of Medical Laboratory Technology (Mahallawi, Ibrahim, Alahmadi, Al-Harbi, Almughthawi), College of Applied Medical Sciences, Taibah University, from the General Directorate of Laboratories and Blood Banks (Alhazmi, Alsehli), Ministry of Health, Al Madinah Al Munawarah, Kingdom of Saudi Arabia and from the Department of Medical Laboratory Sciences (Khabour), Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan

From the Department of Medical Laboratory Technology (Mahallawi, Ibrahim, Alahmadi, Al-Harbi, Almughthawi), College of Applied Medical Sciences, Taibah University, from the General Directorate of Laboratories and Blood Banks (Alhazmi, Alsehli), Ministry of Health, Al Madinah Al Munawarah, Kingdom of Saudi Arabia and from the Department of Medical Laboratory Sciences (Khabour), Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan

From the Department of Medical Laboratory Technology (Mahallawi, Ibrahim, Alahmadi, Al-Harbi, Almughthawi), College of Applied Medical Sciences, Taibah University, from the General Directorate of Laboratories and Blood Banks (Alhazmi, Alsehli), Ministry of Health, Al Madinah Al Munawarah, Kingdom of Saudi Arabia and from the Department of Medical Laboratory Sciences (Khabour), Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan

From the Department of Medical Laboratory Technology (Mahallawi, Ibrahim, Alahmadi, Al-Harbi, Almughthawi), College of Applied Medical Sciences, Taibah University, from the General Directorate of Laboratories and Blood Banks (Alhazmi, Alsehli), Ministry of Health, Al Madinah Al Munawarah, Kingdom of Saudi Arabia and from the Department of Medical Laboratory Sciences (Khabour), Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan

From the Department of Medical Laboratory Technology (Mahallawi, Ibrahim, Alahmadi, Al-Harbi, Almughthawi), College of Applied Medical Sciences, Taibah University, from the General Directorate of Laboratories and Blood Banks (Alhazmi, Alsehli), Ministry of Health, Al Madinah Al Munawarah, Kingdom of Saudi Arabia and from the Department of Medical Laboratory Sciences (Khabour), Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan