sample,fastq_1,fastq_2 SAMPLE1_PE,https://raw.githubusercontent.com/nf-core/test-datasets/viralrecon/illumina/amplicon/sample1_R1.fastq.gz,https://raw.githubusercontent.com/nf-core/test-datasets/viralrecon/illumina/amplicon/sample1_R2.fastq.gz SAMPLE2_PE,https://raw.githubusercontent.com/nf-core/test-datasets/viralrecon/illumina/amplicon/sample2_R1.fastq.gz,https://raw.githubusercontent.com/nf-core/test-datasets/viralrecon/illumina/amplicon/sample2_R2.fastq.gz SAMPLE3_SE,https://raw.githubusercontent.com/nf-core/test-datasets/viralrecon/illumina/amplicon/sample1_R1.fastq.gz, SAMPLE3_SE,https://raw.githubusercontent.com/nf-core/test-datasets/viralrecon/illumina/amplicon/sample2_R1.fastq.gz,