B. Clinical Description Many infections occur without symptoms. Most males with urethral infection have symptoms of purulent or mucopurulent urethral discharge. Men may also have epididymitis due to N. gonorrhoeae. Most infections in women are asymptomatic. Symptoms in women can include abdominal pain, and mucopurulent or purulent cervical discharge. Women may also get urethritis. N. gonorrhoea...

Evidence suggests that many Ebola infections are asymptomatic, a factor overlooked by recent outbreak summaries and projections. Particularly, results from one post-Ebola outbreak serosurvey showed that 71% of seropositive individuals did not have the disease; another study reported that 46% of asymptomatic close contacts of patients with Ebola were seropositive. Although asymptomatic infection...

In dengue virus infections the asymptomatic cases are much more frequent than the symptomatic ones, but their true role in the introduction and subsequent spread of dengue viruses in non-endemic regions remains to de clarified. We analyzed data from English and French literatures to assess if viremia in asymptomatic dengue infections might be sufficient to represent a true risk. During outbreak...

Coronavirus disease 2019 (COVID-19) is a new disease, and obviously many things about it are not yet known for sure. But, the evolution of knowledge being very fast.