The Delta strain is one mutation of the COVID-19 virus that is now the dominant strain in the United States. It is more contagious in unvaccinated persons and appears to be more likely to lead to hospitalizations or death, especially for younger people under the age of 50 yrs old who are unvaccinated.
Symptoms
- Loss of smell or taste
- Shortness of breath or difficulty breathing
- Fever, chills, flu like symptoms
Mode of Transmission
- Respiratory droplets spread by speaking and coughing
Vaccination Effectiveness
- Pfizer is 88% effective
- Moderna is 96% effective
- Johnson and Johnson is not reporting a percentage, but appears to be less effective
- The effect of Booster shots for persons who have received the vaccine are currently under intense review
Source: https://www.cdc.gov/coronavirus/2019-ncov/vaccines/fully-vaccinated-guidance.html