At the end of 2019, severe acute respiratory syndrome coronavirus 2SARS-CoV-2) emerged in Wuhan, Hubei Province, China, and infected over 4 million people around the world. Individuals with coronavirus disease 2019 (COVID-19) have an influenza-like illness and respiratory tract infections. We can categorize patients in three main groups: asymptomatic infected cases, patients with mild upper res...

An asymptomatic fungal cyst of a conjunctival infection was found and removed by biopsy in a young shepherdess. Histopathologic evaluations of the excised tissue specimen from the lesion of the conjunctiva demonstrated an epithelium lined cavity containing a tangled mycelial mass that was surrounded by inflammatory cells and the fungus was identified as Bipolaris spicifera. It is concluded that...

82 Asymptomatic bacteriuria among type 2 diabetics is a significant risk factor for the development of urinary tract infections. E. coli and K. pneumoniae are the most common isolated organisms in the Saudi community. Among type 2 diabetic females, the prevalence of asymptomatic bacteriuria significantly increases with age, duration of diabetes and elevated HbA1c level. Treatment of asymptomati...

Most West Nile virus (WNV) infections are asymptomatic, but some lead to neuroinvasive disease with symptoms ranging from disorientation to paralysis and death. Evidence from animal models suggests that neuroinvasive infections may arise as a consequence of impaired immune protection. However, other data suggest that neurologic symptoms may arise as a consequence of immune mediated damage. We d...

The incidence of black-pigmented (BP) Bacteroides spp. in 62 human dental root canal infections (35 acute and 27 clinically asymptomatic cases of apical periodontitis) in 57 adults was studied. Altogether 37 strains of BP Bacteroides were found in 31 infections, always in mixed anaerobic infections. Two different BP Bacteroides species were present in six infections. B. intermedius was most fre...

To determine the duration and complexity of naturally acquired Plasmodium falciparum infections in small children, a longitudinal cohort study of 143 newborns was conducted in coastal Ghana. On average, children experienced 2 episodes of infection in their first 2 years of life, the median duration of an asymptomatic infection was <4 weeks, and estimates of the mean number of parasite genotypes...

In the first phase III efficacy trial of the malaria vaccine SPf66 in Africa, MOIs in SPf66- and placebo-vaccinated children were analyzed by polymerase chain reaction-restriction fragment length polymorphism of the Plasmodium falciparum merozoite surface antigen 2 (MSA2). MOIs were significantly reduced in asymptomatic vaccine recipients compared with those in asymptomatic placebo recipients; ...

Human brucellosis is mainly caused by contact with Brucella-infected animals and their secretions and carcasses. Individuals who are continuously in contact with animals are considered to be at a high risk but only some show symptoms and are diagnosed as cases of brucellosis. Here, we showed that asymptomatic brucellosis infections occur among humans. Asymptomatic infections mainly result from ...

BACKGROUND Chlamydia trachomatis and Mycoplasma genitalium infections are the most prevalent sexually transmitted bacterial infections in the world that cause urogenital infections in both men and women. It appears that infertility is a complication of these infections. OBJECTIVE This study was designed to estimate the prevalence of Chlamydia trachomatis and Mycoplasma genitalium in symptomat...