For HIV/AID services, the relative percentage change in antiretroviral therapy was positive compared to 2019, but it decreased from 26% in March 2020 when the COVID-19 outbreak was declared to 20% in April 2020, sharply declined to − 35% in May 2020 and rebound to 6% in June of the same year, as shown in Fig. 2. The gene discussed is AICDA; the disease is COVID-19.