During the 14th week of 2018 (26.03.2018 – 01.04.2018), the Republic of Macedonia registered 181 influenza cases/flu-like diseases(I=18.7/100.000).
Compared with the number of registered cases in the last week, are increased for 53%(chart 1)and increased for 6 times compared with the cases of the last season.
Chart 1. Distribution of cases of seasonal influenza by week, typical epidemic curve of the seasons 2010-2017, 2016/2017 and 2017/2018
Regarding the distribution of patients by age groups, the largest number of cases this week have been reported in the age group of 15-64 years (124 cases) and the highest incidence is registered in the age group, from 0-4 years. (I=14.6/100.000), with n=17 cases
This week the biggest number of influenza cases is registered in Strumica, n= 20 and also, the highest incidence is registered in Sveti Nikole (I = 48.7/ 100.000).
From 31 reporting units, only 3 registered low activity of the influenza virus, while other units- didn’t register any cases
Chart 2. Level of influenza activity according to the incidence of 100,000 inhabitants, week 14 2018
In the 2017/2018 season, the total number of influenza like illness (ILI) cases is 23664(I = 1143.6/ 100.000).Compared with the previous season (34899cases), the number has decreased for 32% .
This season the biggest number of influenza cases is registered in Gostivar-2353, Skopje-3091, Strumica-2317, with the highest incindence in Kavadarci (I=3780 /100 000).
Regarding the distribution of patients by age groups, the largest number of cases this season have been reported in the age group of 15-64 years, 14409cases (61%) and the highest incidence is registered in the age group of 5-14 years. (I=2054.0/100 000).
The analysis of the number of seasonal flu cases per month indicates a gradual increase in the number of patients in January (2,396 patients or 10.1%) and a peak in February (12,951 or 54.7%). In march, are registered 7054 or 29.8%.
During this week the laboratory for virology of IPH has received 8 samples, materials for laboratory diagnostics. 3 samples(37.5%) are positive for the presence of influenza virus, subtyped as: 2 are Influenza A (1 А(H1N1)pdm09 and 1 non subtyped), and 1 is Influenza B
Since the beginning of the season 2017/2018, the laboratory received 468 materials, of which, 242 are positive (52%) for the presence of the influenza virus, 69% Influenza B (88% Yamagata, 5% Victoria and 7% non-subtyped.) and 31% Influenza A (of which 80% are A(H1N1)pdm09 and 20% are non sub-typed.) (chart 2)
Chart 2. Weekly distribution of number and percentage of positive samples of influenza 2017/2018
According to reports received by CPH / RO, 27997 people were vaccinated, or 100% of total purchased vaccines. The majority of the vaccinated are aged over 65 years – 60.5%, From the total number of the vaccinated 75.2% have a history of chronic diseases.
According to records presented in Flu News Europe, the activity of influenza virus in Europe is widespread, The situation is common for this time of year.
This week, 35% samples were confirmed as positive, with the common circulation of Influenza A and Influenza B virus although most of the laboratory confirmed viruses belong to Influenza B. B / Yamagata type is dominated by the registered Influenza B viruses, but this type is not included in the trivalent vaccine for this season.
Based on the data provided to EuroMOMO, mortality has increased over the past weeks, in some countries, and decreased in others
The situation is common for this time of year. Low intensity of activity is registered in 33 countries, medium 12. In terms of geographical distribution, 16 countries are sporadic, 6 local, 6 regional and 14 widespread and 3 don’t have any activity