Inocul8 Cowva Customer Case Study: Innovating on AWS Enabling Efficient Vaccinations

Client Overview

Inocul8 is a health-technology company offering preventive healthcare products and services to families and organisations across all sectors.

About the Cowva Platform

Cowva is the complete technology platform used to manage vaccination processes from start to finish, serving healthcare providers across Nigeria.

The platform enables vaccination care providers to efficiently deliver vaccination care and vaccine-related information to their patients through automated appointment scheduling, reminders, secure record hosting, immunization history verification, and inventory forecasting.

The Challenges

Before migrating to AWS, Inocul8 faced several critical infrastructure issues that made it difficult to serve healthcare providers reliably at scale:

• Frequent Platform Downtime

  Services were often disrupted, leading to a low platform uptime of 89%. These outages directly affected healthcare providers’ ability to access patient records and vaccination schedules in real time.

• Unreliable Background Job Processing

  Celery task failures on Heroku's Redis frequently disrupted key automation processes like appointment reminders and patient notifications, reducing service efficiency.

• Database Limitations

  The PostgreSQL database hosted on Digital Ocean had no backups or failover, putting healthcare data at risk and lacking disaster recovery.

• Lack of Scalability

  There was no auto-scaling, making it impossible to handle traffic spikes during mass vaccination campaigns or disease outbreaks.

• No Monitoring or Alerts

  There was no observability into performance or user experience—failures went unnoticed until users complained.

• Manual Deployments and Downtime

  Code deployments were done manually, often causing errors, service disruptions, and delays in pushing updates.

• Data Security Concerns

  With inadequate secrets management and configuration controls, healthcare data lacked proper security.

• High Cost, Low Value

  Despite the limitations, the combined Heroku and Digital Ocean setup incurred high monthly bills without delivering the expected reliability.

The Solutions

CloudPlexo helped Inocul8 migrate the Cowva platform to AWS and re-architect it using scalable, secure, and automated infrastructure practices.

Key AWS Services Used:

• Amazon EC2: Auto Scaling Groups for backend and Celery worker services

• Amazon RDS (PostgreSQL): Multi-AZ deployment for high availability and point-in-time recovery

• Amazon ElastiCache (Redis): For Celery task caching and session management

• Amazon S3 & CloudFront: For hosting and delivering static assets

• AWS CodePipeline & CodeDeploy: Fully automated CI/CD with zero-downtime blue/green deployments

• Amazon SQS: Replaced Heroku Redis to queue background tasks more reliably

• AWS CloudWatch & CloudTrail: For monitoring, alerting, and audit logging

• Secrets Manager & Parameter Store: To securely manage credentials and configurations

The Results and Impacts

1. Platform Reliability Boosted to 99.9%

After migrating to AWS, Inocul8's Cowva platform now enjoys almost zero downtime. This means healthcare providers can confidently access the platform at any time, even during mass vaccination drives, without worrying about sudden service failures.

2. Appointment Reminders and Notifications Now Work Seamlessly

Before migration, most Celery-based background jobs failed or were delayed. After integrating Amazon SQS, dedicated Celery workers, and ElastiCache, the task success rate jumped from 76% to 99.5%. Appointment reminders now get delivered on time, ensuring better patient turnout.

3. Massive Speed Improvements

Previously, pages took up to 4 seconds to load. With AWS services like CloudFront and optimized RDS, page load time dropped to under 800 milliseconds, making the platform significantly faster and improving user experience for healthcare workers on the field.

4. Highly Available, Secure Database

The PostgreSQL database was re-platformed onto Amazon RDS with automatic backups and failover across zones. This ensures data safety, faster query times, and zero risk of data loss.

5. Auto-scaling During Peak Campaigns

With Auto Scaling Groups, the Cowva platform can now automatically adjust resources based on real-time demand, especially useful during national health campaigns. No more slowdowns or crashes during high traffic.

6. Healthcare Data Now Secured

Sensitive health data is now stored with encryption, Secrets Manager, and audit trails using CloudTrail. This brought Cowva closer to compliance-grade infrastructure, critical for handling medical data.

7. 80% Less Operational Overhead

With automated deployments using AWS CodePipeline and CodeDeploy, the team no longer has to deploy updates manually. This led to fewer errors, faster release cycles, and more time to focus on product improvements.

8. 65% Reduction in Infrastructure Cost

Despite being more powerful and scalable, the AWS infrastructure cost far less than the initial setups. Inocul8 now saves money while delivering a premium healthcare experience.

Conclusion

By migrating to AWS, Inocul8 transformed their system into a high-performing, secure, and scalable health-tech platform.

With CloudPlexo’s guidance, they now deliver reliable vaccination services to thousands of Nigerians, supporting their mission to build communities stronger than diseases.