For Ministry of Health Uganda to ensure effective disease detection, reporting, investigations and good response, there is a need for a well-trained Public Health workforce in field Epidemiology. In view of this, AFENET-Uganda with CDC supported Ministry of Health Uganda to conduct a 3 months in-service Field Epidemiology Training Program (FETP)-Frontline for district surveillance teams. The FETP is designed to produce highly skilled epidemiologists who work at the ministry of health and district in the country to strengthen surveillance systems and respond to public health threats [1].

About 75% of learning under FETP arrangement occurs in the field. Trainees conduct fieldwork that increases their capacity to apply epidemiological concepts while strengthening Health System through the production of useful epidemiologic field products that provide information for decision making [2].

According to Dr. Bukirwa Hasifa, the 2019/20 FETP-Cohort was the 11^th trained cohort in Uganda that targeted about 10 districts in western Uganda and the training was conducted at Oxford Hotel Mbarara [3]. The FETP-Frontline consists of an initial 5-day workshop introducing basic epidemiology principles and importance of disease surveillance. The participants then return to their regular job sites for 5 weeks. There, they receive onsite and remote mentoring from program staff to review local surveillance data and conduct a data quality audit around a priority disease in their coverage area. All Frontline FETP participants create a weekly surveillance report using real-world data derived from their home districts. The FETP resident advisors and mentors then guide the participants to aggregate and analyze the data at the district level. The participants return for a second 5-day workshop to present their work and receive feedback from the staff and their peers on their projects. During the second workshop, participants learn how to conduct field investigations and how to effectively communicate results. Participants then return to the field for the second 5-week field stage to put in practice what they have learned under the guidance of the mentors and to complete 2 of 4 possible field activities i.e. Conducting a field investigation to confirm or rule out a reportable disease, developing an expanded surveillance summary report, doing problem analysis of a surveillance quality problem and making appropriate recommendations. In the third workshop, participants present their final projects and receive a certificate of course completion cosigned by MOH Uganda and CDC representatives [4].

This article presents detailed account of Field Epidemiology Training Program (FETP) activities done by the investigator during field placement two. The aim of Uganda FETP is to prepare the frontline participant to be a competent field epidemiology officer capable of detecting early and instituting a correct response to any Public Health issues in the population [1]. This concurs with Centre for Disease Control and Prevention (CDC) goal of supporting several Government ministries of Health to produce highly skilled epidemiologists who can work at ministry of health in the country to strengthen surveillance systems and respond to public health threats [4].

In 2015, the US centers for Disease Control and Prevention launched FETP frontline, a 3 months field training programme targeting MOH staff and District staff in countries. This was aimed at enhancing local Public Health capacity so as to briskly detect, respond and contain Public Health Emergencies at the source. [5]. Among other requirements to complete the FETP, the Uganda FETP 11^th cohort members were required to: Analyze the cause of a quality problem, use the recommended and known WHO, MOH, and IDSR Alert threshold and Action threshold and do trend analysis of frequently reported epidemic prone diseases and finally extract data on malaria cases for five years and use it to construct malaria normal channel for the district. The researcher in this investigation was a FETP-graduate of the 11^th cohort in 2020 from Uganda, applying the knowledge and skills acquired to strengthen the district surveillance system.

Table 1 presents the weekly reporting trend for HMIS 033b in Kabarole district. From week 44 in 2019 to week 3 in 2020, 53 weekly reports from all the Health facilities were expected. Raw 3 of the table shows reports received every week and raw 4 shows the reports received on time. Weekly trend on timeliness and completeness is also shown.

The trend seen in Figure 2 shows, there is no single month when all the 53 expected reports were received translating to an average completeness of 63% against a target of 80%. On timeliness, the situation appears worse, the few reports that were receive weekly most of them were late depicting an average weekly reporting timeless of 32% against a target of 80%.

Figure 3 presents Timeliness and Completeness of the weekly reporting for HMIS 033b in Kabarole district against a national target of 80%. The trend seen above shows that from week 44 in 2019 to week 3 in 2020, performance in both indicators i.e. timeliness and completeness was below target of 80%. On average completeness was at 63% while timeliness was at 32% against a target of 80%.

Table 2 shows the weekly reporting status in the12 selected Health Facilities. It is noted that Kataraka HC 1V, Katojo HC 111 and KasendaHC 111 consistently reported on time achieving and surpassing the 80% target while Kijura, Mucwa and Muhoti HCs continued to deteriorate during the reporting indicated.

KEY: T = Timey: L = Late Report: NR = No report. T = or >50% but <80%; T = 0R > 80%; T ≤ 50%.

Table 3 displays data on the 3 frequently reported epidemic prone diseases during the assessment period. Cases and death from Typhoid fever, Measles and Dysentery are tabulated as the most reported conditions.

Figure 4 shows the trend of most frequently reported diseases as dysentery, measles and typhoid fever. The number of cases for all the 3 diseases increased in week 44 and week 47, from week 51 to week 3, cases for the three conditions were consistently in a low & downward trend.

Figure 5 shows that the alert threshold for typhoid fever was reached and surpassed in week 46 and the Action threshold also surpassed in the same week up to week 48. Alert thresh hold was considered as having a notable increase in typhoid fever cases and the Action threshold as having 20 suspected cases of typhoid seen in the district as by standard WHO guidelines [8].

From Figure 6, it’s noted that district was in Alert phase for measles in week 44, 46, 49 & 52. By experiencing one suspected case of measles, the district is in alert phase.

Figure 7 shows the district reached Alert and Action threshold for dysentery for 2 consecutive weeks (wk 44 and wk 45). Alert threshold is when there is un usual clustering of 5 or more cases of Bacillary dysentery from a parish in a week, Action threshold is when the cases are consistently above Alert threshold for 2 weeks. From week 46, cases dropped and remained below alert phase up to week 3 in 2020.

Field Activity 2: Analysis of a Surveillance Quality Problem

During phase 1 of the investigation, Data Quality Audit (DQA) was done in 12 selected health facilities in the district. Selection criteria of the 12 health facilities reflected in Table 2 was based on; hard to reach health facility, high volume and low surveillance capacities. Findings of the DQA were categorised into Strength, Weaknesses, Opportunities and Threats. The most crosscutting weakness found was Poor HMIS reporting manifested by incomplete and late reporting. This situation prompted the investigator to do route cause analysis using Fish bone tool so as to have a deeper understanding of the problem and recommend practical interventions to correct the situation (Figure 8 & Table 4).

Field Activity 3: Construction of Malaria channel; -The Alert and Action thresh hold.

The available IDSR guidelines outline disease specific thresholds for most priority diseases and Public Health conditions and events. A thresh hold is a pointer to a health worker that once a disease condition reaches the specified thresh hold level, then some action should be taken. According to MOH Uganda IDSR guidelines [9], the two types of threshold that should be considered are: -Alert Threshold and Action thresh hold. Alert threshold calls for immediate investigation of the suspected disease while Action threshold calls for immediate response. Whereas most diseases/events have distinct threshold numbers, malaria being a highly endemic disease, the thresh holds are determined using malaria channel based on malaria weekly reported for 52 weeks in a year. The mean for each week in the five years is determined for all the weeks and then a mean plus 1SD for each week in 5 years is also computed. The two variables are then plotted to form the normal channel. Malaria cases for the year under observations are then plotted in respect to the channel. If the currently observed cases fall outside the upper limit of the channel, then a malaria Action threshold is reached. This calls for immediate reporting to higher levels and for quick investigations [8].

Kataraka Health centre 1V in Kabarole was selected for this activity given the fact that this Health facility had attained the Timeliness and completeness indicators at 92% and 98%. Table 2 attests to this timely, complete and reliable data for action. Health facility surveillance focal person and the HMIS focal persons were involved and mentored on malaria channel construction using the very data they had compiled as shown in Table 5.

Table 5 shows the malaria cases by week for 5 years. The mean for 5 years, Standard deviation, mean plus one standard deviation and the observed malaria cases in 2020.

Figure 9 shows that, the number of malaria cases in year 2020 from week 1 to week 7 fall between the upper and the lower limits of a normal malaria channel. This reflects a normal and expected trend of malaria at Kataraka HCIV in Kabarole district. If similar trends are seen in other Health Facilities, one can confidently say that the district is not under malaria threat as of week 7 in 2020.

The objectives of the assessment were, to do expanded surveillance analysis of weekly reporting in all district Health facilities [Figure 1] focusing on timeliness and completeness, identify the most frequently reported epidemic prone

diseases in 12 weeks (wk 44 - wk 3) and do trend analysis, establish the priority data quality problem in the district and establish underlying causes as well as supporting staff in one Health facility on construction of a malaria channel.

Analysis of weekly reporting in the 53 Health facilities in Kabarole showed that from week 44 in 2019 to week 3 in 2020 the average reporting timeliness was 32% and completeness at 63%. The two indicators are far much below the MOH set target of 80% [9]. Contrary to this finding, other studies done in Uganda and elsewhere [10] [11] have shown improvements in completeness and timeliness of reporting. The Low reporting rate implies that the district may not detect an epidemic threat of public health nature and institute a timely action. Late and low reporting could be attributed to knowledge gap among reporting staff on the importance of timely reporting. Previous studies [12] conducted in other settings have also linked poor health workers performance in surveillance to lack of adequately trained personnel. Interaction with Records Assistants during the DQA established the problem of newly introduced bulky HMIS reporting formats. This concurs with the report earlier on presented by the district Biostatistician [13] that records Assistants were oriented in the newly introduced HMIS forms for only 2 days instead of at least 5 days. The knowledge gap on use of revised tools could be overcome by the district soliciting for extra financial resources to train and mentor the HMIS reporting staffs.

Findings in [Table 3 and Figure 4] further revealed that the frequently reported epidemic prone diseases were dysentery, measles and typhoid fever. No death was however noted for any of the mentioned diseases. Both dysentery and typhoid fever had reached the epidemic proportion levels. WHO IDSR guidelines show that 20 suspected cases of typhoid fever in a district catchment imply that Action threshold is reached. The trend analysis shows [Figure 5] in wk 46, 47 and 48 there were over 20 cases seen, meaning that the district had been with un-noticed out-break of typhoid fever. Further inquiry revealed that diagnosis was being done using WIDAl test which is just a screening test. WHO recommends Blood or stool Culture as confirmatory diagnostic test for salmonella spp. Other studies have identified inadequate laboratory capacity for disease confirmation and limited availability of laboratory supplies as limiting factors in surveillance [10]. This literally means that the typhoid fever outbreak shown by data is not real and the consequences of such a practice are insurmountable ranging from irrational use of Antibiotics in treating none existing condition, economic drain of patients in purchasing expensive antibiotics to creating resistance to local antibiotics.

SWOT analysis revealed that Poor HMIS reporting was the main surveillance quality problem. Route Cause Analysis [Figure 8] revealed that Administrative Issues like Inadequate Support Supervision by the district Health Team was the underpinning factor. Irregular support supervision for IDSR activities has previously been pointed out as a significant challenge affecting surveillance in other studies [14]. Through regular support supervision, health systems challenges can be identified and fixed at early stage.

Malaria epidemics are usually detected using malaria channel. WHO recommends 2 approaches in constructing the malaria channel depending on the Health facility level? [15] National, District level and Health Sub District level. Malaria cases by week for the previous 5 years are organised. Using EXEL the mean for 5 years is determined and tabulated then the mean +ISTEDV. In lower level health Facilities, The mean and median (75^th) percentile is used to construct the channel. Taking all this into account, malaria channel for Kataraka HC IV was constructed. When malaria cases for 2020 were plotted, the channel revealed a normal and expected trend of malaria at Kataraka HCIV and therefor Kabarole district. For this to be more meaningful all reporting health facilities should construct their respective malaria channels.

Kabarole district HMIS weekly reporting Timeliness at 32% and completeness at 63% are far much below the MOH and WHO target of 80%. This shows the district surveillance system is less sensitive to detect serious epidemic prone diseases. Health facilities diagnose typhoid fever by Widal test instead of doing blood or stool culture and this creates theoretical out breaks. Inadequate support supervision and mentorships of health workforce on the newly revised data reporting tools were identified as the main underlying cause of the poor HMIS reporting indicators.

The district surveillance team should intensify targeted support supervision and mentorships of all health workers on reporting. The district surveillance officer should intensify awareness creation on use of blood culture or stool culture for laboratory diagnosis of enteric fevers.

The District surveillance officer should roll out mentorships of health workers on construction and use of malaria channel.

Dealing with data helped the researcher to understand the trends HMIS reporting and the reported disease but the researcher could not understand Health facility specific underlying causes for the poor reporting.

The normal trend of malaria in the district was based on data of one Health Centre IV. A clear picture would have been got if this was done in all 53 health Facilities.

I acknowledge the technical and financial support by AFENET and CDC that enabled us complete the project. The Volunteer Biostatistician Mr. Musoni Wilson who helped us accesses the electronic data in DHIS2 is also acknowledged.

There are no competing interests.

Tumwebaze, M., Solomon, A., Tukahirwa, A. and Kamukama, S. (2020) Strengthening District Health Teams Capacity in Surveillance Systems and Response to Public Health Threats in Western Uganda through Field Epidemiology Training Program (FETP). Open Journal of Epidemiology, 10, 132-145. https://doi.org/10.4236/ojepi.2020.102012

DHIS-2: District Health Information Software Version-2

DQA; Data Quality Audit

CDC: Centre for Disease Control and Prevention.

MOH; Ministry Of Health

FETP-Frontline.: Field Epidemiology Training program

DHT: District Health Team

SWOT: Strength Weakness Opportunities Threats.

IDSR: Intergraded Disease Surveillance and Response

WHO: World Health Organization.

1SD: One Standard Deviation