Titer testing is a blood test that checks immunity to various infections and if a booster shot is needed. Passport Health provides titer testing as part of our commitment to your health.
Coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has caused millions of infections and deaths worldwide since its emergence in December 2019. As there is little or no natural immunity in the
The outbreak of Ebola virus disease (EVD) continues to spread through West Africa. Since the first report of EVD in March 2014, the number of cases has increased rapidly, with the fatality rate of >50%. The most prevalent Ebola virus belongs to the sp
Another cause of reinfection may be due to the lack of high avidity; avidity being the strength of binding between IgG and its specific target epitope. Avidity is established during affinity maturation, and the failure to achieve high avidity IgG may result in the lack of protective immunity tow...