Introduction:
The epidemics and pandemics of human infectious diseases have always
been around for thousands of years. In the meanwhile, viruses have
caused significant problems that have remained hazardous outbreaks
[1].The pandemic of Coronavirus disease 2019 (COVID-19) caused by
severe acute respiratory syndrome Coronavirus-2 (SARS-CoV-2) with a
quickly universal spread [2, 3]. SARS-CoV-2 can involve multiple
organs of the body such as respiratory, gastrointestinal,
skeletomuscular, and neurologic systems [4]. Severe diseases arose
only in 14% of patients especially in persons with comorbidities
including higher age, hypertension, diabetes mellitus, and obesity,
cardiac and chronic respiratory diseases [1, 5]. Nasopharyngeal swab
and lower respiratory tract specimen can be used for COVID-19 diagnosis
[5]. The co-infection of COID-19 with other endemic and local
pathogens could detain the suitable medicine of the causative agent
[4]. Brucellosis is an endemic zoonosis disease and an important
public health issue in most developing countries such as Iran [3,
6]. Consumption of raw milk, unpasteurized dairy products, and
inhalation of infected droplets can lead to brucellosis [7]. Typical
symptoms of brucellosis including fever, malaise, and arthralgia can be
similar to COVID-19 symptoms. The common laboratory findings of these
infections are thrombocytopenia and leukopenia [3, 7]. In this
article, a suspected COVID-19 case was hospitalized then who was finally
diagnosed with co-infection with brucellosis and discussed.