Skip to content
Doctor At Home

COVID Vaccine: Types, Schedules, and Current Recommendations

covid vaccine

The COVID vaccine has been one of the most effective tools to reduce the severity of illness and prevent serious complications. Several brands are authorized worldwide, each with specific features and vaccination schedules. In this article, we explain the main types of COVID vaccines, who should receive them, booster recommendations, and situations when vaccination is not advised.

Main types and brands of COVID vaccines

The most widely used vaccines with strong scientific support are:

Pfizer-BioNTech (Comirnaty)

  • Type: mRNA.
  • Schedule: 2 doses, 21 days apart, plus an annual booster.
  • Key points: High effectiveness in preventing severe illness and hospitalization.

Moderna (Spikevax)

  • Type: mRNA.
  • Schedule: 2 doses, 28 days apart, plus an annual booster.
  • Key points: Similar to Pfizer in effectiveness, with strong immune response in both younger and older adults.

AstraZeneca (Vaxzevria)

  • Type: Non-replicating viral vector.
  • Schedule: 2 doses, 8–12 weeks apart.
  • Key points: Widely available and effective in preventing severe disease.

Sputnik V

  • Type: Viral vector.
  • Schedule: 2 doses, 21 days apart.
  • Key points: Shown good efficacy, though its international approval is still limited in some countries.

Johnson & Johnson (Janssen)

  • Type: Viral vector.
  • Schedule: Single dose, with optional booster.
  • Key points: Useful in hard-to-reach populations, though less commonly available today.

Who should get the COVID vaccine?

Everyone aged 6 months and older can benefit, especially:

  • Adults over 60 years old.
  • People with chronic conditions (diabetes, hypertension, immunosuppression).
  • Healthcare professionals.
  • Pregnant women (if medically advised).

When to get vaccinated?

  • Vaccination is recommended when the individual is in good health.
  • It should not be administered during an active COVID-19 infection.
  • If experiencing flu-like symptoms or fever, it is best to wait until full recovery, even with a negative COVID test.

Annual boosters

Leading health agencies (WHO, CDC) recommend an annual booster, especially for older adults and high-risk groups, to maintain protection against new variants.

Contraindications

  • Severe allergy to any component of the vaccine.
  • History of anaphylaxis after a previous dose.
  • Active infection or fever over 38°C (100.4°F).

Which vaccine is currently most recommended?

mRNA vaccines (Pfizer and Moderna) are currently the most recommended due to their proven efficacy and safety profile. Both are internationally approved and supported by multiple clinical studies.

Cities where we offer COVID vaccination

At Doctor At Home we provide home vaccination services in:

  • Puerto Vallarta
  • Cabo San Lucas
  • San José del Cabo
  • Mazatlán
  • Culiacán
  • Guadalajara
  • Chapala
  • Morelia
  • San Luis Potosí
  • Cuernavaca
  • Mexico City
  • State of Mexico
  • Puebla
  • Mérida
  • Cozumel
  • Playa del Carmen
  • Cancún
  • Monterrey

Conclusion

The COVID vaccine is safe, effective, and essential to prevent severe complications. Schedule your vaccination easily through our web menu.