A study in Ghana with rapid kit detection of anti-nucleocapsid protein IgG and IgM reported up to 27% antibody seropositivity in populated areas such as lorry stations and markets, as compared to 10% seropositivity in shopping malls mostly patronized by the affluent [132], and these are much more than the reported infection rate from national case counts. The gene discussed is CD40LG; the disease is infection.