BiLSTM	Bidirectional long short-term memory
CNN	Convolutional neural network
COVID-19	Coronavirus Disease 2019
CT	Computed tomography
CXR	Chest X-ray
GHE	Global histogram equalisation
GPU	Graphics processing unit
Grad-CAM	Gradient-weighted class activation mapping
IA	Image augmentation
MERS-CoV	Middle East Respiratory Syndrome
NIA	No image augmentation
PNG	Portable network graphics
RAM	Random-access memory
ReLU	Rectified linear unit
RNA	Ribonucleic acid
RT-PCR	Reverse transcription polymerase chain reaction
SARS-CoV	Severe Acute Respiratory Syndrome
SARS-CoV-2	Severe Acute Respiratory Syndrome Coronavirus 2
TBH	Top bottom hat transform
WHO	World Health Organisation