Abstract We determined the seroprevalence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in an affected area northern Iran April 2020. Antibodies to SARS-CoV-2 were detected 528 persons by using rapid tests. Adjusted prevalence seropositivity was 22.2% (95% CI 16.4%–28.5%).

introductionpopulation data is easily accessible and shows the relationship between city size and other socio-economic factors in the city indirectly, so many geographers using this type of data to gain an understanding of the structure of the cities network and distribution of the people in the different levels of urban hierarchy. in fact, urban hierarchy is the best way of space organization ...

In Iran, the last National Nutrition and Dietary Survey [1] showed that about 80% of Iranians do not meet the estimated average requirement for calcium. While foods are not generally fortified in Iran, dietary supplement may be a convenient way to prevent nutritional deficiency in high-risk population groups including the elderly [2, 3]. There is however, no data on supplement usage by older ad...

Mohaddeseh Safarpoor Nikoo Langroodi was born in Langrood, Guilan, I.R. Iran. She received B.S. in chemistry from Shahid Beheshti University (2006) and his M.S. in organic chemistry from University of Guilan (2010) under the direction of Professor Farhad Shirini. After two years, she began her Ph.D. studies at University of Guilan under supervision of Professor Farhad Shirini. Her current resea...

between july and august 2009, a total of two hundred crossbreed dogs in three contiguous littoralprovinces of guilan, mazandaran and golestan were sampled. circulating antigens and/or microfilariae ofdirofilaria immitis were found in 25.5% of dogs in the whole studied area. the highest infection rate wasfound in guilan (51.42%), followed by golestan and mazandaran provinces (15.38% and 7.69%, r...