HYBRID EVENT: You can participate in person at Boston, Massachusetts, USA or Virtually from your home or work.
Zahra Mohammed A Alhajjaj , Speaker at Vaccines Conferences
Collage of Medicine, Hail University, Saudi Arabia
Title : A Comparative Study about post-vaccination symptoms with Coronavirus (COVID -19) vaccines among people in Saudi Arabia and Egypt


Introduction: Coronavirus (COVID-19) a new member of the human coronavirus’s family, was identified in 2019 as the causative agent of a new disease outbreak in China associated with severe medical complications and even death in some cases. The unavailability of a vaccine or other efficacious therapeutic option has required all the nations worldwide to combat the pandemic’s spread. Several precautionary strategies, which include lockdown, social distancing, wearing facemasks, and travel limitations, have been applied to stop this pandemic. On December 11, 2020, the US Food and Drug Administration (FDA) authorized the emergency use of the Pfizer-BioNTech COVID-19 vaccine and on February 15, 2021, the adenoviral vector vaccines ChAdOx1 nCoV-19 (AstraZeneca-Ox- ford) were granted emergency use.

Aim of study: is to compare between the side effects as a result of Coronavirus (COVID-19) vaccines among people in Kingdom of Saudi Arabia and Egypt.

Subjects and Methods: It was conducted among people vaccinated with Pfizer or Astra- Zeneca. The respondents were asked about the symptoms and side effects after the first and second doses of the vaccines, such as injection site pain, arm pain, muscle pain, headache, fever, chills, fatigue, nausea or diarrhea. Data will be collected through the questionnaire that distributed among people in Saudi Arabia, and people interview in Egypt.


Zahra Mohammed A Alhajjaj a fourth year medical student at Hail University, Saudi Arabia. graduated from 6th high school/ Eastern province, Saudi Arabia with 3.94/4 GPA. Member of Medical Club at UOH, Human’s Life Program, My Way Medicine, Alaata Charity. She have participated in the laparoscopy stimulation workshop during the diabetes and obesity international conference held in the college of medicine at Hail University.