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ABC Medical Center > Nutrition
Tag: Nutrition
Understanding the Role of Carbohydrates in the Body
Jun 8 2026
Healthy eating plate for children
Jan 27 2026
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Comparison of COVID-19 vaccines
Pfizer-
BioNTech
Pfizer-BioNTech
What is its effectiveness and what does it refer to?
Vaccine type: mRNA
Effectiveness: 95% after the second dose in the prevention of symptomatic COVID-19.
No Does not contain egg, latex, or preservatives.
How many doses are needed?
Two doses are needed, at least 21 days apart (or up to six weeks apart, if necessary).
Who should or shouldn’t get the vaccine?
People who should receive the vaccine are those over 16 years old.
People who should not receive the vaccine are those who have a history of anaphylactic shock (severe allergy) or who are allergic to any component of this vaccine such as polyethylene glycol (PEG) or polysorbate.
What are the possible side effects of the vaccine?
Pain where the injection was given, fatigue, headache, muscle pain, chills, joint pain, fever, nausea, malaise, and swollen lymph nodes.
How long will it take for me to be protected and what does it protect me from?
After 14 days of having the complete scheme (after the administration of the 2nd dose), the protection period is still under study. It protects us from serious COVID-19 or requiring hospitalization.
Moderna
What is its effectiveness and what does it refer to?
Vaccine type: mRNA
Effectiveness: 94.5% after the second dose in the prevention of symptomatic COVID-19.
Does not contain egg, latex, or preservatives.
How many doses are needed?
Two doses are needed, at least 28 days apart (or up to six weeks apart, if necessary).
Who should or shouldn’t get the vaccine?
People who should receive the vaccine are those over 18 years old.
People who should not receive the vaccine are those who have a history of anaphylactic shock (severe allergy) or who are allergic to any component of this vaccine.
What are the possible side effects of the vaccine?
Pain where the injection was given, fatigue, headache, muscle pain, chills, joint pain, fever, nausea, and swollen lymph nodes in the arm in which you received the injection.
How long will it take for me to be protected and what does it protect me from?
After 14 days of having the complete scheme (after the administration of the 2nd dose), the protection period is still under study. It protects us from serious COVID-19 or requiring hospitalization.
Janssen/
Johnson
& Johnson
Janssen/ Johnson & Johnson
What is its effectiveness and what does it refer to?
Vector-based vaccine.
Effectiveness: 72.0% in the prevention of symptomatic COVID-19.
85% in the prevention of severe COVID-19.
Does not contain egg, latex, or preservatives./strong>
How many doses are needed?
Only one dose in needed.
Who should or shouldn’t get the vaccine?
People who should receive the vaccine are those over 18 years old.
People who should not receive the vaccine are those who have a history of anaphylactic shock (severe allergy) or who are allergic to any component of this vaccine.
What are the possible side effects of the vaccine?
Pain where the injection was given, headache, fatigue, muscle pain, chills, fever, and nausea.
How long will it take for me to be protected and what does it protect me from?
After 28 days of having the complete scheme (the last dose applied), the protection period is still under study. It protects us from 85% serious COVID-19 or requiring hospitalization.
AstraZeneca
and
Oxford
University
AstraZeneca and Oxford University
What is its effectiveness and what does it refer to?
Adenovirus vector-based vaccine.
Effectiveness: 82% after the second dose in the prevention of symptomatic COVID-19.
How many doses are needed?
Two doses are needed, at least 56 days apart (or up to 84 days apart, if necessary).
Who should or shouldn’t get the vaccine?
People who should receive the vaccine are those over 18 years old.
People who should not receive the vaccine are those who have a history of anaphylactic shock (severe allergy) or who are allergic to any component of this vaccine.
What are the possible side effects of the vaccine?
Pain where the injection was given, fatigue, headache, myalgia, arthralgia, and fever, which were mild to moderate in intensity and disappeared within 48 hours of vaccination.
How long will it take for me to be protected and what does it protect me from?
After 14 days of having the complete scheme (after the administration of the 2nd dose), the protection period is still under study. It protects us from serious COVID-19 or requiring hospitalization.
Sputnik V
What is its effectiveness and what does it refer to?
Adenovirus vector-based vaccine.
Effectiveness: 92% after the second dose in the prevention of symptomatic COVID-19.
How many doses are needed?
Two doses are needed, at least 21 days apart (or up to six weeks apart, if necessary).
Who should or shouldn’t get the vaccine?
People who should receive the vaccine are those over 18 years old.
People who should not receive the vaccine are those who have a history of anaphylactic shock (severe allergy) or who are allergic to any component of this vaccine.
What are the possible side effects of the vaccine?
Pain where the injection was given, fatigue, headache, myalgia, arthralgia, and fever, which were mild to moderate in intensity and disappeared within 48 hours of vaccination.
How long will it take for me to be protected and what does it protect me from?
After 14 days of having the complete scheme (after the administration of the 2nd dose), the protection period is still under study. It protects us from serious COVID-19 or requiring hospitalization.
Anti-Herpes Zoster
Herpes zoster is a painful, burning rash. It usually appears on one part of the body and can last for several weeks. It can cause long-lasting severe pain and scarring. Bacterial skin infections, weakness, muscle paralysis, hearing or vision loss may occur less frequently. Herpes zoster is caused by the same virus that causes chickenpox. After you have had chickenpox, the virus that caused it remains in the body of nerve cells. Sometimes after many years, the virus becomes active again and causes herpes zoster.
Vaccination is indicated in the following cases:
- Immunization of patients from 50 years of age for the prevention of herpes zoster and post-herpetic neuralgia (PHN), reduce pain associated with acute or chronic herpes zoster.
Scheme type:
- Single dose.
Rabies
Human rabies is a viral disease transmitted by the bite of an infected animal. It is characterized by acute encephalomyelitis (an aggressive response of the immune system that destroys the myelin layer of the nerves and alters its function at the level of the brain or spinal cord).
Vaccination is indicated in the following cases:
- Prevention of rabies in subjects exposed to risk of contamination. It is recommended for certain international travelers, based on the occurrence of animal rabies in the destination country.
Scheme type:
There are two types.
1. Pre-exposure scheme, consists of three doses of rabies vaccine:
- First dose, on the chosen date.
- Second dose 7 days after the first dose.
- Third dose 28 days after the first dose.
2. Post-exposure scheme, people not vaccinated against rabies, consists of five doses of rabies vaccine.
- First dose, on the date indicated.
- Second dose 3 days after the first dose.
- Third dose 7 days after the first dose.
- Fourth dose 14 days after the first dose.
- Fifth dose 28 days after the first dose.
* If the individual continues to be at risk of exposure to the disease, revaccination should be considered.
Pneumococcal vaccines
Pneumococcal disease can cause serious infections in the lungs (pneumonia), the bloodstream (bacteremia), and the lining of the brain and spinal cord (meningitis).
Two vaccines help prevent pneumococcal disease:
- Pneumoconjugate 13 (pneumococcal conjugate vaccine)
- Pneumococcal 23 (pneumococcal polysaccharide vaccine)
Vaccination is indicated in the following cases:
- Active immunization for the prevention of invasive disease caused by Streptococcus pneumoniae in adults 65 years of age and older.
Scheme type:
- *Two pneumococcal vaccines are recommended for all adults 65 years of age or older.
*One dose of Pneumococcal 13 vaccine should be given first, followed by one dose of Pneumococcal 23 vaccine, depending on your age and health.