Background In the past few months, the coronavirus disease (COVID-19) pandemic has caused extensive economic and social damage. Objective The purpose of this study was to assess the impact of COVID-19–related measures on partner relationships and sexual and reproductive health in China. Methods From May 1 to 5, 2020, 3500 young Chinese individuals were recruited through WeChat or Weibo to participate in a survey to obtain information on sexual and reproductive health (eg, sexual desire, frequency of sexual intercourse, sexual satisfaction, etc). The questionnaire also collected demographic data (eg, age, race, education, current financial status, sexual orientation, relationship status, etc). Results In total, 967 participants were included in the sexual health analysis. Due to the COVID-19 pandemic and related containment measures, 22% of participants (n=212) reported a decrease in sexual desire; 41% (n=396) experienced a decrease in the sexual intercourse frequency; 30% (n=291) reported an increase in the frequency of masturbation; 20% (n=192) reported a decrease in alcohol consumption before or during sexual activities, and 31% (n=298) reported a deterioration in partner relationships during the pandemic. The logistic regression analysis indicated that the following influenced partner relationships: accommodations during the pandemic (P=.046; odds ratio [OR] 0.59; 95% CI 0.30-0.86); exclusive relationship status (yes or no) (P<.001; OR 0.44; 95 % CI 0.27-0.73); sexual desire (P=.02; OR 2.01; 95% CI 1.38-2.97); and sexual satisfaction (P<.001; OR 1.92; 95% CI 1.54-2.50). COVID-19 also caused disruptions in reproductive health services such as prenatal and postnatal care, childbirth and abortion services, contraception availability, and the management of sexually transmitted infections. Conclusions Our results show that many young people have wide-ranging issues affecting their sexual and reproductive health due to the COVID-19 pandemic and related containment measures. Strategies and guidelines are needed to safeguard the sexual and reproductive health of young people during this pandemic.

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In view of the influence of ABO blood group antigens on infectious diseases, we explore the effect of ABO blood types on SARS-COV-2 infection. In this report, demographic data of 80 COVID-19 patients and 26 SARS-COV-2 asymptomatic carriers were collected based on electronic medical records. The results indicated that the distribution of ABO blood group in the confirmed patients was significantly different from asymptomatic carriers; importantly, antigen A carrier have significantly higher risk of developing into severe or critically cases than other types. These data present further evidence for the association of the blood groups to susceptibility to SARS-COV-2 infection.